ldp.html
author John Arwe
Tue, 10 Jun 2014 11:39:03 -0400
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parent 636 46b0ed651256
child 644 afe041e0f7fc
permissions -rw-r--r--
clean up lingering 2616 references, adjust accept-post BNF for bis changes
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<!DOCTYPE html>
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<!-- 
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	TODO: Search for them within this document.
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	TODO: Once companion documents (best practices, primer) have URLs, link to them.  Search on "companion".
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	TODO: Add new "discovery of server capabilities" non-norm section
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    TODO: Consider adding Venn diagram for differences of LDPCs
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<html>
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  <head>
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    <title>Linked Data Platform 1.0</title>
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    <meta http-equiv='Content-Type' content='text/html;charset=utf-8'/>
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    <!-- 
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      === NOTA BENE ===
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      For the three scripts below, if your spec resides on dev.w3 you can check them
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      out in the same tree and use relative links so that they'll work offline,
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     -->
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    <script src='https://www.w3.org/Tools/respec/respec-w3c-common' class='remove' async></script> 
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    <script class='remove'>
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      var respecConfig = {
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          // specification status (e.g. ED, WD, LC, NOTE, etc.). If in doubt use ED.
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          specStatus:           "ED",
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          // the specification's short name, as in http://www.w3.org/TR/short-name/
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          shortName:            "ldp",
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          // if your specification has a subtitle that goes below the main
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          // formal title, define it here
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          // subtitle   :  "an excellent document",
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          // if you wish the publication date to be other than today, set this
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          //publishDate:  "2014-03-11",
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          // if the specification's copyright date is a range of years, specify
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          // the start date here:
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          // copyrightStart: "2005"
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          // if there is a previously published draft, uncomment this and set its YYYY-MM-DD date
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          // and its maturity status
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          previousPublishDate:  "2014-03-11",
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          previousMaturity:  	"LC",
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          previousURI: 			"http://www.w3.org/TR/2014/WD-ldp-20140311/",
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          // if there a publicly available Editor's Draft, this is the link
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          edDraftURI:           "http://www.w3.org/2012/ldp/hg/ldp.html",
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          // if this is a LCWD, uncomment and set the end of its review period
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          lcEnd: "2014-04-02",
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          // Only include h1 and h2 level
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          maxTocLevel: 2,
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          // if you want to have extra CSS, append them to this list
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          // it is recommended that the respec.css stylesheet be kept
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          //extraCSS:             ["https://dvcs.w3.org/hg/ldpwg/css/respec.css"],
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          // editors, add as many as you like
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          // only "name" is required
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          editors:  [
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              { name: "Steve Speicher", url: "http://stevespeicher.blogspot.com",
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                company: "IBM Corporation", companyURL: "http://ibm.com/" },
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              { name: "John Arwe", url: "https://www.ibm.com/developerworks/mydeveloperworks/groups/service/html/allcommunities?userid=120000CAW7",
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                company: "IBM Corporation", companyURL: "http://ibm.com/" },
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			  {name: "Ashok Malhotra", url: "mailto:ashok.malhotra@oracle.com",
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			    company: "Oracle Corporation", companyURL: "http://www.oracle.com" },
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          ],
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          // authors, add as many as you like. 
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          // This is optional, uncomment if you have authors as well as editors.
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          // only "name" is required. Same format as editors.
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          //authors:  [
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          //    { name: "Your Name", url: "http://example.org/",
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          //      company: "Your Company", companyURL: "http://example.com/" },
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          //],
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          // name of the WG
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          wg:           "Linked Data Platform Working Group",
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          // URI of the public WG page
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          wgURI:        "http://www.w3.org/2012/ldp",
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          // name (without the @w3c.org) of the public mailing to which comments are due
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          wgPublicList: "public-ldp-comments",
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          // URI of the patent status for this WG, for Rec-track documents
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          // !!!! IMPORTANT !!!!
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          // This is important for Rec-track documents, do not copy a patent URI from a random
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          // document unless you know what you're doing. If in doubt ask your friendly neighbourhood
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          // Team Contact.
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          wgPatentURI:  "http://www.w3.org/2004/01/pp-impl/55082/status",
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          doRDFa: "1.1",
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			localBiblio:  {
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				"RFC7230": {
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					title:    "Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing"
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				,   href:     "http://tools.ietf.org/html/rfc7230"
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				,   authors:  [
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						"R. Fielding"
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					,   "J. Reschke"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"RFC7231": {
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					title:    "Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content"
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				,   href:     "http://tools.ietf.org/html/rfc7231"
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				,   authors:  [
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						"R. Fielding"
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					,   "J. Reschke"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"RFC7232": {
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					title:    "Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests"
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				,   href:     "http://tools.ietf.org/html/rfc7232"
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				,   authors:  [
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						"R. Fielding"
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					,   "J. Reschke"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"RFC2817": {
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					title:    "Upgrading to TLS Within HTTP/1.1"
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				,   href:     "http://tools.ietf.org/html/rfc2817"
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				,   authors:  [
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						"R. Khare"
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					,   "S. Lawrence"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"RFC5005": {
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					title:    "Feed Paging and Archiving"
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				,   href:     "http://tools.ietf.org/html/rfc5005"
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				,   authors:  [
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						"M. Nottingham"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"LDP-PAGING": {
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					title:    "Linked Data Platform Paging"
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				,   href:     "https://dvcs.w3.org/hg/ldpwg/raw-file/default/ldp-paging.html"
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				,   authors:  [
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						"S. Speicher", "J. Arwe", "A. Malhotra"
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					]
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				,   status:   "Editor's Working Draft"
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				,   publisher:  "W3C"
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				},
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				"POWDER": {
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					title:    "Protocol for Web Description Resources (POWDER): Description Resources"
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				,   href:     "http://www.w3.org/TR/2009/REC-powder-dr-20090901/"
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				,   authors:  [
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						"Phil Archer", "Kevin Smith", "Andrea Perego"
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					]
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				,   status:   "W3C Recommendation"
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				,   publisher:  "W3C"
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				},
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				"RFC7240": {
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					title:    "Prefer Header for HTTP"
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				,   href:     "http://tools.ietf.org/html/rfc7240"
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				,   authors:  [
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						"J. Snell"
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					]
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				,   status:   "Proposed Standard"
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				,   publisher:  "IETF"
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				},
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				"Accept-Post": {
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					title:    "The Accept-Post HTTP Header"
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				,   href:     "http:tools.ietf.org/html/draft-wilde-accept-post"
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				,   authors:  [
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						"J. Arwe", "S. Speicher", "E. Wilde"
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					]
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				,   status:   "Internet Draft"
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				,   publisher:  "IETF"
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				},
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				"LDP-Tests": {
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					title:    "Linked Data Platform 1.0 Test Cases"
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				,   href:     "https://dvcs.w3.org/hg/ldpwg/raw-file/tip/Test%20Cases/LDP%20Test%20Cases.html"
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				,   authors:  [
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						"R. Garcia-Castro", "F. Serena"
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					]
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				,   status:   "Editor's Draft of Working Group Note"
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				,   publisher:  "W3C"
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				},
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			},
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      };
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    </script>
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    <style type="text/css">
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    	div.rule {padding-top: 1em;}
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    	div.ldp-issue-open {
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	    	border-color: #E05252;
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			background: #FBE9E9;
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			padding: 0.5em;
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			margin: 1em 0;
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			position: relative;
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			clear: both;
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			border-left-width: .5em;
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			border-left-style: solid;
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    	}
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    	div.ldp-issue-pending {
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	    	border-color: #FAF602;
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			background: #F7F6BC;
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			padding: 0.5em;
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			margin: 1em 0;
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			position: relative;
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			clear: both;
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			border-left-width: .5em;
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			border-left-style: solid;
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    	}
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    	div.ldp-issue-closed {
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	    	border-color: #009900;
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			background: #BCF7CF;
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			padding: 0.5em;
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			margin: 1em 0;
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			position: relative;
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			clear: both;
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			border-left-width: .5em;
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			border-left-style: solid;
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    	}
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    	div.ldp-issue-title {
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    	    color: #E05252;
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    	    padding-right: 1em;
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            min-width: 7.5em;
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    	}
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		.atrisk {
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			padding:    1em;
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			margin: 1em 0em 0em;
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			border: 1px solid #f00;
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			background: #ffc;
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		}
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		.atrisktext {
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			/* content:    "Feature At Risk"; */
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			display:    block;
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			width:  150px;
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			margin: -1.5em 0 0.5em 0;
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			font-weight:    bold;
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			border: 1px solid #f00;
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			background: #fff;
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			padding:    3px 1em;
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		}
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		.normal { 
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			font-weight: normal;
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			font: normal 100% sans-serif;
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		}
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		.indented { 
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			margin-left: +3em;
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		}
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		tr:nth-of-type(odd),.oddrow { 
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			background:#F2F2F2; /* light grey, just enough to differentiate from white */
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		}
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		td { 
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			padding:0 +1ex 0 +1ex; /* add a bit of space from rule/edge to text */
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		}
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    </style>
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    <style type="text/css" media="all">
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    	code {
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    	    font-weight:bold;
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			font-size:larger;
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    	}
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		 /* ReSpec uses color ff4500 for code elements, which does not print well on some black & white printers
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		    and is a little hard to read for some folks even on-line. 
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			The default code font size was also somewhat too small/hard to read.
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		*/
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    </style>
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  </head>
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<body>
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<section id='abstract'>
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This document describes a set of best practices and simple approach for a read-write Linked Data architecture, based on
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HTTP access to web resources that describe their state using the <abbr title="Resource Description Framework">RDF</abbr>
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data model.
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</section>
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 <section id='sotd'>
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   <p>
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   	 This is the 2nd Last Call for Comments where the Working Group has addressed all
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   	 raised issues and as a result some significant changes have been made, see <a href="#history" class="sectionRef"></a>.  Most notably 
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   	 the Working Group has decided to handle paging as an extension to LDP in a separate
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   	 REC-track specification. [[LDP-PAGING]]
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	 A test suite is available at [[LDP-Tests]].
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   </p>
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   <p>The following features are At Risk:</p>
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   <ol>
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   <li>The <a href="#header-accept-post">HTTP Accept-Post header</a>, 
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		that allows clients to determine which media types a server accepts on POST requests.
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	</li>
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   <li>The requirement that LDP clients be <a href="#atrisk-paging">paging-aware</a>.
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	</li>
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   </ol>
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 </section>
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<section class="informative" id="intro">
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<h1>Introduction</h1>
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	<p>This specification describes the use
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	of HTTP for accessing, updating, creating and deleting resources from
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	servers that expose their resources as Linked Data.  It provides clarifications
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	and extensions of the rules of Linked Data [[LINKED-DATA]]:</p>
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	<ol>
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		<li>Use URIs as names for things</li>
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		<li>Use HTTP URIs so that people can look up those names</li>
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		<li>When someone looks up a URI, provide useful information, using the standards
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			(RDF*, <abbr title="SPARQL Protocol and RDF Query Language">SPARQL</abbr>)
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		</li>
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		<li>Include links to other URIs, so that they can discover more things</li>
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	</ol>
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	<p>This specification discusses standard HTTP and RDF techniques  
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	used when constructing clients and servers that 
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	create, read, and write <a title="Linked Data Platform Resource">Linked Data Platform Resources</a>.
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	A companion document discusses best practices that you 
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	should use, and anti-patterns you should avoid, when constructing these clients and servers.
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	</p> 
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	<p>This specification defines a special type of <a>Linked Data Platform Resource</a>: a 
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	<a title="Linked Data Platform Container">Container</a>.  Containers are very useful 
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	in building application models involving collections of resources, often homogeneous ones. 
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	For example, universities offer a collection of classes 
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	and a collection of faculty members, each faculty member teaches a collection of courses, and so on. 
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	This specification discusses how to work with containers.  Resources can be added to containers  
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	using standard HTTP operations like 
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	POST (see <a href="#ldpc-HTTP_POST" class="sectionRef"></a>).</p>
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	<p>The intention of this specification is to enable additional rules and layered groupings of rules as 
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	additional specifications.  The scope is intentionally narrow to provide a set of key rules for 
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	reading and writing Linked Data that most, if not all, other specifications will depend upon and 
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	implementations will support.</p>
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	<p>This specification provides some approaches to deal with large resources.  An extension to this specification
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	provides the ability to break large resource representations into multiple paged responses [[LDP-PAGING]].</p>
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	<p>For context and background, it could be useful to read <a href="#bib-LDP-UCR">Linked Data Platform Use Case and Requirements</a> [[LDP-UCR]] 
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	and <a href="#base-specs" class="sectionRef"></a>.</p>
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</section>
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<section id="terms">
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<h1>Terminology</h1>
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<p>Terminology is based on W3C's Architecture of the World Wide Web [[!WEBARCH]] and 
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	Hyper-text Transfer Protocol ([[!RFC7230]], [[!RFC7231]], [[!RFC7232]]).
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</p>
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  <dl class="glossary">
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	<dt>Link</dt>
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	<dd>A relationship between two resources when one resource (representation) refers to the other resource by means
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		of a URI [[WEBARCH]].
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		<p></p></dd>
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	<dt>Linked Data</dt>
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	<dd>As defined by Tim Berners-Lee [[LINKED-DATA]].<p></p></dd>
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	<dt>Client</dt>
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	<dd>A program that establishes connections for the purpose of sending one or more HTTP requests [[!RFC7230]].<p></p></dd>
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	<dt>Server</dt>
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	<dd>A program that accepts connections in order to service HTTP requests by sending HTTP responses. 
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		<p>
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		The terms "client" and "server" refer only to the roles that these programs perform for a particular connection.  
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		The same program might act as a client on some connections and a server on others.
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		</p>
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		<p>
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		HTTP enables the use of intermediaries to satisfy requests through a
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		chain of connections.  There are three common forms of HTTP
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		intermediary: proxy, gateway, and tunnel.  In some cases, a single
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		intermediary might act as an origin server, proxy, gateway, or
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		tunnel, switching behavior based on the nature of each request.
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		[[!RFC7230]]. 
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		</p>
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	</dd>
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	<dt><dfn>Linked Data Platform Resource</dfn> (<abbr title="Linked Data Platform Resource">LDPR</abbr>)</dt>
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	<dd>A HTTP resource whose state is represented in any way that conforms to the simple lifecycle
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		patterns and conventions in <a href="#ldpr" class="sectionRef"></a>.<p></p></dd>
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	<dt><dfn>Linked Data Platform RDF Source</dfn> (<abbr title="Linked Data Platform RDF Source">LDP-RS</abbr>)</dt>
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	<dd>An <a title="Linked Data Platform Resource">LDPR</a> whose state is fully represented in RDF, corresponding to
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	an RDF graph. See also the term
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	<a href="http://www.w3.org/TR/rdf11-concepts/#dfn-rdf-source">RDF Source</a> from [[!rdf11-concepts]].
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	<p></p></dd>	
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	<dt><dfn>Linked Data Platform Non-RDF Source</dfn> (<abbr title="Linked Data Platform Non-RDF Source">LDP-NR</abbr>)</dt>
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	<dd>An <a title="Linked Data Platform Resource">LDPR</a> whose state is <em>not</em> represented in RDF.
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	For example, these can be binary or text documents that do not have useful RDF representations.
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	<p></p></dd>
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	<dt><dfn>Linked Data Platform Container</dfn> (<abbr title="Linked Data Platform Container">LDPC</abbr>)</dt>
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	<dd>A LDP-RS representing a collection of linked
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	documents (<a href="http://www.w3.org/TR/rdf11-concepts/#dfn-rdf-document">RDF Document</a> [[!rdf11-concepts]] or information resources [[!WEBARCH]])
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	that responds to client requests for creation, modification, and/or enumeration of its linked members and documents, 
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	and that conforms to the simple lifecycle
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	patterns and conventions in <a href="#ldpc" class="sectionRef"></a>.
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	<p></p></dd>
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	<dt><dfn>Linked Data Platform Basic Container</dfn> (<abbr title="Linked Data Platform Basic Container">LDP-BC</abbr>)</dt>
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	<dd>An <a title="Linked Data Platform Container">LDPC</a> that defines a simple link to
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	its <a title="Containment">contained</a> documents (information resources) [[!WEBARCH]].
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	<p></p></dd>
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	<dt><dfn>Linked Data Platform Direct Container</dfn> (<abbr title="Linked Data Platform Direct Container">LDP-DC</abbr>)</dt>
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	<dd>An <a title="Linked Data Platform Container">LDPC</a> that adds the concept of <a title="Membership">membership</a>, allowing the flexibility of choosing what form its 
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	<a title="Membership triples">membership triples</a> take, and allows <a title="Membership">members</a> to be 
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	any resources [[!WEBARCH]], not only documents.
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	<p></p></dd>
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	<dt><dfn>Linked Data Platform Indirect Container</dfn> (<abbr title="Linked Data Platform Indirect Container">LDP-IC</abbr>)</dt>
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	<dd>An <a title="Linked Data Platform Container">LDPC</a> similar to a <a title="Linked Data Platform Direct Container">LDP-DC</a>
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	that is also capable of having <a title="Membership">members</a> whose URIs are based
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	on the content of its <a title="Containment">contained</a> documents rather than the URIs assigned to those documents.
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	<p></p></dd>
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	<dt><dfn>Membership</dfn></dt>
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	<dd>The relationship linking an LDPC and its member LDPRs, 
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	which can be different resources than its <a title="Containment">contained</a> documents.  
601
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   409
	The LDPC often assists with managing the membership triples, whether or not the LDPC's
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   410
	URI occurs in them.
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   411
	<p></p></dd>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
   412
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   413
	<dt><dfn>Membership triples</dfn></dt>
601
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   414
	<dd>A set of triples that lists an LDPC's members.
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   415
		A LDPC's membership triples all have one of the following patterns:
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   416
		<table class="indented">
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   417
		<tr>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   418
		<td style="background:#DDDDDD"> <var>membership-constant-URI</var> </td>
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   419
		<td style="background:#FFFFFF"> <var>membership-predicate</var> </td>
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   420
		<td style="background:#CCFFFF"> <var>member-derived-URI</var> </td>
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   421
		</tr>
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   422
		<tr>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   423
		<td style="background:#CCFFFF"> <var>member-derived-URI</var> </td>
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   424
		<td style="background:#FFFFFF"> <var>membership-predicate</var> </td>
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   425
		<td style="background:#DDDDDD"> <var>membership-constant-URI</var> </td>
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   426
		</tr>
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   427
		</table>
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
   428
		The difference between the two is simply which position member-derived-URI occupies, which is usually
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   429
		driven by the choice of <var>membership-predicate</var>.  Most predicates have a natural forward direction
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   430
		inherent in their name, and existing vocabularies contain useful examples that read naturally in
453
a70c321daf12 ACTION-120 (Part 3) Added ldp:member
sspeiche
parents: 452
diff changeset
   431
		each direction.  <code>ldp:member</code> and <code>dcterms:isPartOf</code> are representative examples.
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   432
		<p>
503
d13ec755f468 Adjusted term membership triples and membership predicate
sspeiche
parents: 502
diff changeset
   433
		Each linked container exposes properties (see <a href="#ldpc-general" class="sectionRef"></a>)
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
   434
		that allow clients to determine which pattern it
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   435
		uses, what the actual <var>membership-predicate</var> and <var>membership-constant-URI</var> values are, 
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   436
		and (for containers that allow the creation of new members) what value is used
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
   437
		for the <var>member-derived-URI</var> based on the client's input to the 
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   438
		creation process.</p>
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
   439
	<p></p></dd>
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
   440
	
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   441
	<dt><dfn>Membership predicate</dfn></dt>
601
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   442
	<dd>The predicate of all an LDPC's <a title="Membership triples">membership triples</a>.
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   443
	<p></p></dd>
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   444
	
465
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   445
	<dt><dfn>Containment</dfn></dt>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   446
	<dd>The relationship binding an LDPC to LDPRs whose lifecycle it controls and is aware of.  The
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   447
	lifecycle of the contained LDPR is limited by the lifecycle of the containing LDPC;
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   448
	that is, a contained LDPR cannot be created (through LDP-defined means) before its containing LDPC exists.
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   449
	<p></p></dd>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   450
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   451
	<dt><dfn>Containment triples</dfn></dt>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   452
	<dd>
561
ceeb37eb8f71 Clarify definitions of membership and containment triples to address Martin Nally comment
John Arwe
parents: 559
diff changeset
   453
	A set of triples, maintained by the LDPC, that lists documents created by the LDPC but not yet deleted.
465
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   454
	These triples <strong>always</strong> have the form: <var>( LDPC URI, ldp:contains , document-URI )</var>.
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   455
	<p></p></dd>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   456
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
   457
	<dt><dfn>Minimal-container triples</dfn></dt>
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
   458
	<dd>
601
5fc4b4b9efc2 LDP: RS>LDPC in membership definitions; paging: incorporate todo list in prolog and fix respec messages
John Arwe
parents: 600
diff changeset
   459
	The portion of an LDPC's triples that would be present when the container is empty.  Currently, this definition
561
ceeb37eb8f71 Clarify definitions of membership and containment triples to address Martin Nally comment
John Arwe
parents: 559
diff changeset
   460
	is equivalent to all the LDPC's triples minus its containment triples, 
ceeb37eb8f71 Clarify definitions of membership and containment triples to address Martin Nally comment
John Arwe
parents: 559
diff changeset
   461
	and minus its membership triples (if either are considered part of its state), 
ceeb37eb8f71 Clarify definitions of membership and containment triples to address Martin Nally comment
John Arwe
parents: 559
diff changeset
   462
	but if future versions of LDP define additional classes of triples then this definition
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
   463
	would expand to subtract out those classes as well.
412
b5f309858d98 Resolve ACTION-113 Update spec to reflect 11/04 resolution to remove 303 and have client use first/next links to detect paging
John Arwe
parents: 410
diff changeset
   464
	<p></p></dd>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   465
  </dl>
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
   466
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   467
<section id="conventions">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   468
<h2>Conventions Used in This Document</h2>
512
28fb37e65361 Added namespace definition
sspeiche
parents: 511
diff changeset
   469
	<p>The namespace for LDP is <code>http://www.w3.org/ns/ldp#</code>.</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   470
	<p>Sample resource representations are provided in <code>text/turtle</code>
495
559a77692da5 Fixed up some specref references
sspeiche
parents: 494
diff changeset
   471
		format [[turtle]].</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   472
	<p>Commonly used namespace prefixes:</p>
93
598be81efe5f Expanded on wording for 4.3 to be more consistent
sspeiche
parents: 92
diff changeset
   473
	<pre style="word-wrap: break-word; white-space: pre-wrap;">	@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
522
b3fd53a7b048 Prepare for LC2
sspeiche
parents: 521
diff changeset
   474
	@prefix foaf:    &lt;http://xmlns.com/foaf/0.1/&gt;.
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
   475
	@prefix rdf:     &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
   476
	@prefix ldp:     &lt;http://www.w3.org/ns/ldp#&gt;.
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
   477
	@prefix xsd:     &lt;http://www.w3.org/2001/XMLSchema#&gt;.</pre>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   478
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   479
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   480
    
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   481
<section id='conformance'>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   482
72
73a5766e4794 ISSUE-29 - Use relative URIs in examples
sspeiche
parents: 71
diff changeset
   483
<p>The status of the sections of Linked Data Platform 1.0 (this document) is as follows:</p>
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   484
<ul>
463
ae72388dbb82 start action-127 paging use of [23]xx response code; also changed 'informative' to 'non-normative' so sandro is happy[ier]
John Arwe
parents: 462
diff changeset
   485
  <li>1. Introduction: <b>non-normative</b></li>
222
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   486
  <li>2. Terminology: <b>normative</b></li>
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   487
  <li>3. Conformance: <b>normative</b></li>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   488
  <li>4. Linked Data Platform Resources: <b>normative</b></li>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   489
  <li>5. Linked Data Platform Containers: <b>normative</b></li>
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   490
  <li>6. Notable information from normative references: <b>non-normative</b></li>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   491
  <li>7. HTTP Header Definitions: <b>normative</b></li>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   492
  <li>8. Security Considerations: <b>non-normative</b></li>
463
ae72388dbb82 start action-127 paging use of [23]xx response code; also changed 'informative' to 'non-normative' so sandro is happy[ier]
John Arwe
parents: 462
diff changeset
   493
  <li>A. Acknowledgements: <b>non-normative</b></li> 
525
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   494
  <li>B. Change History: <b>non-normative</b></li>
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   495
  <li>C.1 Normative references: <b>normative</b></li>
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   496
  <li>C.2 Non-normative references: <b>non-normative</b></li>
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   497
</ul>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   498
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   499
<p>A conforming <b><dfn>LDP client</dfn></b> is a conforming HTTP client [[!RFC7230]] that follows the rules defined by LDP in
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   500
<a href="#ldpr" class="sectionRef"></a> and also
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   501
<a href="#ldpc" class="sectionRef"></a>.
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   502
</p>
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   503
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   504
<p>A conforming <b><dfn>LDP server</dfn></b> is a conforming HTTP server [[!RFC7230]] that follows the rules defined by LDP in 
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   505
<a href="#ldpr" class="sectionRef"></a> when it is serving LDPRs, and also
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   506
<a href="#ldpc" class="sectionRef"></a> when it is serving LDPCs.
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   507
LDP does not constrain its behavior when serving other HTTP resources.
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   508
</p>
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   509
</section>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   510
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   511
<section id="ldpr">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   512
<h1>Linked Data Platform Resources</h1>
222
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   513
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   514
<section class="informative" id="ldpr-informative">
466
7b840138bdf1 editorial cleanup; substantive hits to ldpc delete, remove reqt for direct containers to materialize insertedContentRelation (since it's value is fixed)
John Arwe
parents: 465
diff changeset
   515
<h2>Introduction</h2>
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
   516
	<p>Linked Data Platform Resources (<dfn><abbr title="Linked Data Platform Resources">LDPRs</abbr></dfn>) are HTTP resources
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   517
		that conform to the simple patterns and conventions in this section.
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   518
		HTTP requests to access, modify, create or delete LDPRs are accepted
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   519
		and processed by <a title="LDP server">LDP servers</a>. Most LDPRs are domain-specific resources
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   520
		that contain data for an entity in some domain, which could be
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   521
		commercial, governmental, scientific, religious, or other.</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   522
	<p>Some of the rules defined in this document provide
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
   523
		clarification and refinement of the base Linked Data rules [[LINKED-DATA]];
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   524
		others address additional needs.</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   525
	<p>The rules for Linked Data Platform Resources address basic
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   526
		questions such as:</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   527
	<ul>
231
38d1a7faf1c4 Various editorial comments from PA
sspeiche
parents: 230
diff changeset
   528
		<li>What resource representations should be used?</li>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   529
		<li>How is optimistic collision detection handled for updates?</li>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   530
		<li>What should client expectations be for changes to linked-to resources,
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   531
				such as type changes?</li>
547
d34ef0884d9e Fixed LC-2840 clarity on burden of constraint
sspeiche
parents: 542
diff changeset
   532
		<li>How can the server make it easy for the client to create resources?</li>
464
77fd28c9eb94 action-127 use tag [23]xx status code for paging; also change paging to be for LDP-RRs as a consequence of issue-89 vocab changes
John Arwe
parents: 463
diff changeset
   533
		<li>How	do I GET the representation of a large resource broken up into pages?</li>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   534
	</ul>
463
ae72388dbb82 start action-127 paging use of [23]xx response code; also changed 'informative' to 'non-normative' so sandro is happy[ier]
John Arwe
parents: 462
diff changeset
   535
	<p>Additional non-normative guidance is available in the <a
439
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   536
			href="https://dvcs.w3.org/hg/ldpwg/raw-file/default/ldp-bp/ldp-bp.html"
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   537
			class="external"
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   538
			title="LDP Best Practices and Guidelines"
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   539
			rel="nofollow">LDP Best Practices and Guidelines editor's draft</a> that addresses
37
3e92cccfe6a3 edits to 4., 4.1.2, 4.1.6, http method support (aside from GET on LDPRs, and HEAD, HTTP governs), 5.2.1 clarify, 5.3.2/5.3.3 allow 3xx
John Arwe <johnarwe@us.ibm.com>
parents: 33
diff changeset
   540
		questions such as:</p>
3e92cccfe6a3 edits to 4., 4.1.2, 4.1.6, http method support (aside from GET on LDPRs, and HEAD, HTTP governs), 5.2.1 clarify, 5.3.2/5.3.3 allow 3xx
John Arwe <johnarwe@us.ibm.com>
parents: 33
diff changeset
   541
	<ul>
3e92cccfe6a3 edits to 4., 4.1.2, 4.1.6, http method support (aside from GET on LDPRs, and HEAD, HTTP governs), 5.2.1 clarify, 5.3.2/5.3.3 allow 3xx
John Arwe <johnarwe@us.ibm.com>
parents: 33
diff changeset
   542
		<li>What literal value types should be used?</li>
3e92cccfe6a3 edits to 4., 4.1.2, 4.1.6, http method support (aside from GET on LDPRs, and HEAD, HTTP governs), 5.2.1 clarify, 5.3.2/5.3.3 allow 3xx
John Arwe <johnarwe@us.ibm.com>
parents: 33
diff changeset
   543
		<li>Are there some typical vocabularies that should be reused?</li>
3e92cccfe6a3 edits to 4., 4.1.2, 4.1.6, http method support (aside from GET on LDPRs, and HEAD, HTTP governs), 5.2.1 clarify, 5.3.2/5.3.3 allow 3xx
John Arwe <johnarwe@us.ibm.com>
parents: 33
diff changeset
   544
	</ul>
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   545
	<p>The following sections define the conformance rules for LDP servers when serving LDPRs.
497
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   546
	Companion non-normative documents describe additional guidelines for use when interacting with LDPRs. 
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   547
	</p>
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   548
	<p>LDP-RS's representations may be too big, one strategy is to break up the response representation
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   549
	into client consumable chunks called pages. A separate LDP specification outlines the conformance
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   550
	rules around pagination [[LDP-PAGING]].
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   551
	</p>
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   552
	<p>A LDP server can manage two kinds of <a title="Linked Data Platform Resources">LDPRs</a>, those resources whose state 
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   553
	is represented using RDF (LDP-RS) and those using other formats (LDP-NR).  LDP-RSs have the unique
461
64c0ca32c9e6 Cleanup from Action-123 add LDPR-RR and LDPR-BR
John Arwe
parents: 460
diff changeset
   554
	quality that their representation is based on RDF, which addresses a number of use cases from web metadata, open data 
496
94420c5678ae Reference cleanup and tweak LDP-RS term
sspeiche
parents: 495
diff changeset
   555
	models, machine processable information, and automated processing by software agents [[!rdf11-concepts]].  LDP-NRs are almost anything
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   556
	on the Web today: images, HTML pages, word processing documents, spreadsheets, etc. and LDP-RSs hold 
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   557
	metadata associated with LDP-NRs in some cases.
448
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   558
	</p>
451
f68e4a59fba1 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 450
diff changeset
   559
    <figure id="fig-ldpr-types">
448
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   560
        <img src="images/ldpr1.png" alt="Sample separation of Linked Data Platform Resource" />
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   561
        <figcaption>Samples of different types of LDPRs</figcaption>
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   562
    </figure>
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   563
    <p>The LDP-NRs and LDP-RSs are simply sub-types of LDPRs, as illustrated in <a href="#fig-ldpr-class"></a>.</p>  
448
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   564
    <figure id="fig-ldpr-class">
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   565
       <img src="images/ldpr2.png" alt="Class Diagram of Linked Data Platform Resource" />
491
16d872a712b6 Adopted container hierarchy and merged Indirect Container into Container
sspeiche
parents: 489
diff changeset
   566
       <figcaption>Class relationship of types of Linked Data Platform Resources</figcaption>
448
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   567
     </figure>
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   568
	
222
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   569
</section>
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   570
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   571
<section id="ldpr-resource">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   572
<h2>Resource</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   573
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   574
<section id="ldpr-general">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   575
<h2>General</h2>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   576
		
637
87b108186dd5 clean up lingering 2616 references, adjust accept-post BNF for bis changes
John Arwe
parents: 636
diff changeset
   577
	<section id="ldpr-gen-http"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST at least be HTTP/1.1 conformant servers [[!RFC7230]].
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   578
	</h2></section><!-- Was 4.2.1 / #ldpr-4_2_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   579
	
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   580
	<section id="ldpr-gen-binary"><h2 class="normal"><a title="LDP server">LDP servers</a> MAY host a mixture of <a title="Linked Data Platform RDF Source">LDP-RSs</a>
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   581
	and <a title="Linked Data Platform Non-RDF Source">LDP-NRs</a>. For example, it
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   582
		is common for <a title="LDP server">LDP servers</a> to need to host binary or text resources
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   583
		that do not have useful RDF representations.</h2></section><!-- Was 4.2.3 / #ldpr-4_2_3 -->
69
0f9825dea52b Updating some simple formatting, reorganizing open issues and todos
sspeiche
parents: 68
diff changeset
   584
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   585
	<section id="ldpr-gen-etags"><h2 class="normal"><a title="LDP server">LDP server</a> responses MUST use entity tags (either 
579
fc520a8e75eb Clarify MUST etags on responses with representations and HEAD
sspeiche
parents: 566
diff changeset
   586
		weak or strong ones) as response <code>ETag</code> header values, for responses that contain resource representations or
580
d17c3d23800e Clarify MUST etags on responses with representations and HEAD
sspeiche
parents: 579
diff changeset
   587
		successful responses to HTTP <code>HEAD</code> requests.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   588
	</h2></section><!-- Was 4.2.8 / #ldpr-4_2_8 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   589
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   590
	<section id="ldpr-gen-linktypehdr"><h2 class="normal"><a title="LDP server">LDP servers</a>
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   591
		exposing LDPRs 
149
3f5f825f1155 issue-57 How can a client determine that it is in communication with an LDP server?
John Arwe
parents: 134
diff changeset
   592
		MUST advertise their LDP support by exposing a HTTP <code>Link</code> header
454
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
   593
		with a target URI of <code>http://www.w3.org/ns/ldp#Resource</code>, and
402
935e1e08d2bb Fix some typos around paging, move to single quotes for link relations per 5988
John Arwe
parents: 395
diff changeset
   594
		a link relation type of <code>type</code> (that is, <code>rel='type'</code>)
149
3f5f825f1155 issue-57 How can a client determine that it is in communication with an LDP server?
John Arwe
parents: 134
diff changeset
   595
		in all responses to requests made 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   596
		to an LDPR's HTTP <code>Request-URI</code> [[!RFC5988]]. 
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   597
	</h2></section><!-- Was 4.2.10 / #ldpr-4_2_10 -->
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   598
	<blockquote>
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   599
		<p>
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   600
		Note: 
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   601
		The HTTP <code>Link</code> header is the method by which servers assert their support for the LDP specification 
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   602
		on a specific resource in a way that clients can inspect dynamically at run-time.   
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   603
		This is <strong>not</strong> equivalent to the
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
   604
		presence of a <var>(subject-URI, <code>rdf:type</code>, <code>ldp:Resource</code>)</var> triple in an LDP-RS.
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   605
		The presence of the header asserts that the server complies with the LDP specification's constraints on 
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   606
		HTTP interactions with LDPRs, that is
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   607
		it asserts that the resource <a href="#ldpr-gen-etags">has Etags</a>, <a href="#ldpr-options-must">supports OPTIONS</a>, and so on,
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   608
		which is not true of all Web resources.
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   609
		</p>
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   610
		<p>
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   611
		Note: 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   612
		<a href="#ldpr-gen-binary">A LDP server can host a mixture of LDP-RSs and LDP-NRs</a>, and therefore there is no implication
192
221002315344 Removed 4.1.5 and various formatting issues
sspeiche
parents: 191
diff changeset
   613
		that LDP support advertised on one HTTP <code>Request-URI</code> means that other 
221002315344 Removed 4.1.5 and various formatting issues
sspeiche
parents: 191
diff changeset
   614
		resources on the same server are also LDPRs.  Each HTTP <code>Request-URI</code> needs to be 
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   615
		individually inspected, in the absence of outside information.
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   616
		</p>
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
   617
	</blockquote>
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   618
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   619
	<section id="ldpr-gen-defbaseuri"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST assign the default 
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   620
		base-URI for [[!RFC3987]] relative-URI resolution to be the HTTP 
224
39ca65760446 Removed 5.4.8.1 and added 4.2.12 to better handle base/rel URI
sspeiche
parents: 223
diff changeset
   621
		<code>Request-URI</code> when the resource already exists, and to the URI of the created resource when the request results 
39ca65760446 Removed 5.4.8.1 and added 4.2.12 to better handle base/rel URI
sspeiche
parents: 223
diff changeset
   622
		in the creation of a new resource.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   623
	</h2></section><!-- Was 4.2.12 / #ldpr-4_2_12 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   624
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   625
	<section id="ldpr-gen-pubclireqs"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST 
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   626
		publish any constraints on <a title="LDP client">LDP clients’</a> ability to 
402
935e1e08d2bb Fix some typos around paging, move to single quotes for link relations per 5988
John Arwe
parents: 395
diff changeset
   627
		create or update LDPRs, by adding a Link header with <code>rel='describedby'</code> 
504
065e49b91d0b Corrected rel=meta to be rel=describedBy
sspeiche
parents: 503
diff changeset
   628
		[[!RFC5988]] to all responses to requests which fail due to violation of 
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   629
		those constraints.  For example, a server that refuses resource creation 
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   630
		requests via HTTP PUT, POST, or PATCH would return this <code>Link</code> header on its 
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   631
		4xx responses to such requests.
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   632
		The same <code>Link</code> header MAY be provided on other responses.  LDP neither 
504
065e49b91d0b Corrected rel=meta to be rel=describedBy
sspeiche
parents: 503
diff changeset
   633
		defines nor constrains the representation of the link's target resource.  Natural language 
065e49b91d0b Corrected rel=meta to be rel=describedBy
sspeiche
parents: 503
diff changeset
   634
		constraint documents are therefore permitted, 
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   635
		although machine-readable ones facilitate better client interactions.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   636
	</h2></section><!-- Was 4.2.13 / #ldpr-4_2_13 -->
152
938e7d21cc10 issue-78 inferencing levels add 4.1.13
John Arwe
parents: 151
diff changeset
   637
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   638
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   639
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   640
<section id="ldpr-HTTP_GET">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   641
<h2>HTTP GET</h2>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   642
	<section id="ldpr-get-must"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST support the HTTP <code>GET</code> Method for LDPRs.
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   643
	</h2></section><!-- Was 4.3.1 / #ldpr-4_3_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   644
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   645
	<section id="ldpr-get-options"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST support the HTTP response headers defined in 
228
ec118c66c122 Moved 4.7.2 (from HEAD) to 4.3.2 (GET), shifted rest of GET section by one
sspeiche
parents: 227
diff changeset
   646
		<a href="#ldpr-HTTP_OPTIONS" class="sectionRef"></a>.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   647
	</h2></section><!-- Was 4.3.2 / #ldpr-4_3_2 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   648
	
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   649
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   650
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   651
<section id="ldpr-HTTP_POST">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   652
<h2>HTTP POST</h2>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   653
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   654
		Per [[!RFC7231]], this HTTP method is optional and 
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   655
		this specification does not require <a title="LDP server">LDP servers</a> to support it.
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   656
		When a LDP server supports this method, 
485
195cdbad4852 Updated LDPR Post reference to Put, which had implied that clients could PUT (to an LDPC) to create an LDPR
John Arwe
parents: 484
diff changeset
   657
		this specification imposes no new requirements for LDPRs.
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   658
	</p>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   659
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   660
	<p>Clients can create LDPRs via <code>POST</code> (<a href="#ldpc-HTTP_POST" class="sectionRef"></a>) to a LDPC, 
485
195cdbad4852 Updated LDPR Post reference to Put, which had implied that clients could PUT (to an LDPC) to create an LDPR
John Arwe
parents: 484
diff changeset
   661
		via <code>PUT</code> (<a href="#ldpr-HTTP_PUT" class="sectionRef"></a>), or any other methods allowed
195cdbad4852 Updated LDPR Post reference to Put, which had implied that clients could PUT (to an LDPC) to create an LDPR
John Arwe
parents: 484
diff changeset
   662
		for HTTP resources.  Any server-imposed constraints on LDPR creation or update  
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   663
		<a href="#ldpr-gen-pubclireqs">must be advertised</a> to clients.
480
96f2d9c4a742 Updated LDPC DELETE language and cleanup todos
sspeiche
parents: 479
diff changeset
   664
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   665
	</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   666
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   667
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   668
<section id="ldpr-HTTP_PUT">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   669
<h2>HTTP PUT</h2>
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   670
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   671
		Per [[!RFC7231]], this HTTP method is optional and 
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   672
		this specification does not require <a title="LDP server">LDP servers</a> to support it.
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   673
		When a LDP server supports this method, 
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   674
		this specification imposes the following new requirements for LDPRs.
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   675
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   676
		
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   677
	<p>
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   678
		Any server-imposed constraints on LDPR creation or update  
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   679
		<a href="#ldpr-gen-pubclireqs">must be advertised</a> to clients.
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   680
	</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   681
		
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   682
	<section id="ldpr-put-replaceall"><h2 class="normal">If a HTTP <code>PUT</code> is accepted on an existing resource, 
389
f1dbb042137b Resolve ACTION-109 Update spec to reflect 10/21 resolution for ignoring triples on PUT
John Arwe
parents: 388
diff changeset
   683
		<a title="LDP server">LDP servers</a> MUST
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   684
		replace the entire persistent state of the identified resource with
61
2f8a2d58e65c ISSUE-11 - 4.4.1 Relaxed the MUST ignore dc:modified/creator to MAY
sspeiche
parents: 60
diff changeset
   685
		the entity representation in the body of the request. 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   686
		<a title="LDP server">LDP servers</a> MAY ignore server-managed properties such as <code>dcterms:modified</code> 
61
2f8a2d58e65c ISSUE-11 - 4.4.1 Relaxed the MUST ignore dc:modified/creator to MAY
sspeiche
parents: 60
diff changeset
   687
		and <code>dcterms:creator</code> if they are not under
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   688
		client control. Any <a title="LDP server">LDP servers</a> that wish
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   689
		to support a more sophisticated merge of data provided by the client
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   690
		with existing state stored on the server for a resource MUST use HTTP
192
221002315344 Removed 4.1.5 and various formatting issues
sspeiche
parents: 191
diff changeset
   691
		<code>PATCH</code>, not HTTP <code>PUT</code>.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   692
	</h2></section><!-- Was 4.5.1 / #ldpr-4_5_1 -->
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   693
		
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   694
	<section id="ldpr-put-simpleupdate"><h2 class="normal"><a title="LDP server">LDP servers</a> SHOULD allow clients to update resources without
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   695
		requiring detailed knowledge of server-specific constraints.  
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   696
		This is a consequence of the requirement to enable simple creation and modification of LDPRs.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   697
	</h2></section><!-- Was 4.5.7 / #ldpr-4_5_7 -->	
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   698
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   699
	<section id="ldprs-put-servermanagedprops"><h2 class="normal">
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   700
		If an otherwise valid HTTP <code>PUT</code> request is received 
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   701
		that attempts to change properties the server does not allow clients to modify, 
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   702
		<a title="LDP server">LDP servers</a> MUST 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   703
		fail the request by responding with a 4xx range status code (typically
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   704
		409 Conflict). 
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   705
		<a title="LDP server">LDP servers</a> SHOULD provide a corresponding response body containing
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   706
		information about which properties could not be
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   707
		persisted.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   708
		The format of the 4xx response body is not constrained by LDP.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   709
	</h2></section><!-- Was 4.5.1.1 / #ldpr-4_5_1_1 -->
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   710
	<blockquote>
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   711
		Non-normative note: Clients might provide properties equivalent to those already in the resource's state,
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   712
		e.g. as part of a GET/update representation/PUT sequence, and those PUT requests are intended to work as long as the 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   713
		server-managed properties 
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   714
		are identical on the GET response and the subsequent PUT request.
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   715
		This is in contrast to other cases like write-once properties that the server does not allow clients to modify once set; 
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   716
		write-once properties are under client control, they are not <a href="#ldpr-put-replaceall">server-managed</a>.
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   717
	</blockquote>
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   718
	
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   719
	<section id="ldprs-put-failed"><h2 class="normal">
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   720
		If an otherwise valid HTTP <code>PUT</code> request is received that contains properties the server 
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   721
		chooses not to persist, e.g. unknown content,
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   722
		<a title="LDP server">LDP servers</a> MUST respond with an appropriate 4xx range status code
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   723
		[[!RFC7231]].  
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   724
		<a title="LDP server">LDP servers</a> SHOULD provide a corresponding response body containing
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   725
		information about which properties could not be
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   726
		persisted.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   727
		The format of the 4xx response body is not constrained by LDP. LDP servers
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   728
		expose these application-specific constraints as described in <a href="#ldpr-general" class="sectionRef"></a>.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   729
	</h2></section><!-- Was 4.5.4 / #ldpr-4_5_4 -->
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   730
	
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   731
	<section id="ldpr-put-precond"><h2 class="normal"><a title="LDP client">LDP clients</a> SHOULD use the HTTP <code>If-Match</code>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   732
		header and HTTP <code>ETags</code> to ensure it isn’t
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   733
		modifying a resource that has changed since the client last retrieved
372
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   734
		its representation. <a title="LDP server">LDP servers</a> SHOULD require the HTTP <code>If-Match</code> header and HTTP <code>ETags</code>
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   735
		to detect collisions. <a title="LDP server">LDP servers</a> MUST respond with status code 412
122
14197f56039e Issue-74 resolution - 428 precondition required
John Arwe
parents: 120
diff changeset
   736
		(Condition Failed) if <code>ETag</code>s fail to match when there are no other
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   737
		errors with the request [[!RFC7232]].  <a title="LDP server">LDP servers</a> that require conditional requests MUST respond with status code 428
122
14197f56039e Issue-74 resolution - 428 precondition required
John Arwe
parents: 120
diff changeset
   738
		(Precondition Required) when the absence of a precondition is the only reason for rejecting the request [[!RFC6585]].
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   739
	</h2></section><!-- Was 4.5.2 / #ldpr-4_5_2 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   740
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   741
	<section id="ldpr-put-create"><h2 class="normal"><a title="LDP server">LDP servers</a> MAY choose to allow the creation of new resources using HTTP <code>PUT</code>.
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   742
	</h2></section><!-- Was 4.5.6 / #ldpr-4_5_6 -->
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   743
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   744
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   745
		
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   746
<section id="ldpr-HTTP_DELETE">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   747
<h2>HTTP DELETE</h2>
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   748
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   749
		Per [[!RFC7231]], this HTTP method is optional and 
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   750
		this specification does not require <a title="LDP server">LDP servers</a> to support it.
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   751
		When a LDP server supports this method, 
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   752
		this specification imposes no new blanket requirements for LDPRs.
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   753
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   754
		
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   755
	<p>Additional requirements on HTTP <code>DELETE</code> for LDPRs within containers can be found in
466
7b840138bdf1 editorial cleanup; substantive hits to ldpc delete, remove reqt for direct containers to materialize insertedContentRelation (since it's value is fixed)
John Arwe
parents: 465
diff changeset
   756
	<a href="#ldpc-HTTP_DELETE" class="sectionRef"></a>.
7b840138bdf1 editorial cleanup; substantive hits to ldpc delete, remove reqt for direct containers to materialize insertedContentRelation (since it's value is fixed)
John Arwe
parents: 465
diff changeset
   757
	</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   758
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   759
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   760
<section id="ldpr-HTTP_HEAD">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   761
<h2>HTTP HEAD</h2>
515
9f5b3854a5bb Fixed a number of broken links
sspeiche
parents: 514
diff changeset
   762
	<p>Note that certain LDP mechanisms rely on HTTP headers, and HTTP generally requires that
192
221002315344 Removed 4.1.5 and various formatting issues
sspeiche
parents: 191
diff changeset
   763
		<code>HEAD</code> responses include the same headers as <code>GET</code> responses.  
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   764
		Thus, implementers should also carefully read sections <a href="#ldpr-HTTP_GET"></a> 
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   765
		and <a href="#ldpr-HTTP_OPTIONS"></a>.</p>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   766
	<section id="ldpr-head-must"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST support the HTTP <code>HEAD</code> method.
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   767
	</h2></section><!-- Was 4.7.1 / #ldpr-4_7_1 -->
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   768
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   769
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   770
<section id="ldpr-HTTP_PATCH">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   771
<h2>HTTP PATCH</h2>
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   772
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   773
		Per [[!RFC5789]], this HTTP method is optional and 
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   774
		this specification does not require <a title="LDP server">LDP servers</a> to support it.
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   775
		When a LDP server supports this method, 
475
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   776
		this specification imposes the following new requirements for LDPRs.
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   777
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   778
		
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   779
	<p>
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   780
		Any server-imposed constraints on LDPR creation or update  
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   781
		<a href="#ldpr-gen-pubclireqs">must be advertised</a> to clients.
500
c52f08081c8a Removed rule on PATCH create, as it doesn't add any substantive over RFC5789
sspeiche
parents: 498
diff changeset
   782
	</p>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   783
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   784
	<section id="ldpr-patch-acceptpatch"><h2 class="normal"><a title="LDP server">LDP servers</a> that support <code>PATCH</code> MUST
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   785
		include an <code>Accept-Patch</code> HTTP response header [[!RFC5789]] on HTTP <code>OPTIONS</code>
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   786
		requests, listing patch document media type(s) supported by the server.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   787
	</h2></section><!-- Was 4.8.4 / #ldpr-4_8_4 -->
186
a3471f4667d8 Removed closed issues that required no new spec changes: 50, 56, 16, 19, 17
sspeiche
parents: 185
diff changeset
   788
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   789
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   790
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   791
<section id="ldpr-HTTP_OPTIONS">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   792
<h2>HTTP OPTIONS</h2>
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   793
	<p>This specification imposes the following new requirements on HTTP <code>OPTIONS</code> for LDPRs 
637
87b108186dd5 clean up lingering 2616 references, adjust accept-post BNF for bis changes
John Arwe
parents: 636
diff changeset
   794
		beyond those in [[!RFC7231]].  Other sections of this specification, for example 
167
ae4592939639 issue-80 Add Accept-Post
John Arwe
parents: 158
diff changeset
   795
		<a href="#ldpr-HTTP_PATCH">PATCH</a>,
481
beb136ede044 Removed LDPR Paging HTTP OPTIONS section (no longer needed) and more cleanup of todos
sspeiche
parents: 480
diff changeset
   796
		<a href="#header-accept-post">Accept-Post</a>,
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   797
		add other requirements on <code>OPTIONS</code> responses.
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   798
		</p>
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   799
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   800
	<section id="ldpr-options-must"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST support the HTTP <code>OPTIONS</code> method.
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   801
	</h2></section><!-- Was 4.9.1 / #ldpr-4_9_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   802
		
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   803
	<section id="ldpr-options-allow"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST indicate their support for HTTP Methods by
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   804
		responding to a HTTP <code>OPTIONS</code> request on the LDPR’s URL with the HTTP
192
221002315344 Removed 4.1.5 and various formatting issues
sspeiche
parents: 191
diff changeset
   805
		Method tokens in the HTTP response header <code>Allow</code>.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   806
	</h2></section><!-- Was 4.9.2 / #ldpr-4_9_2 -->
134
917946ac571e ISSUE-33 Moved 5.1.3 Paging (LDPC) to 4.8 (LDPR)
sspeiche
parents: 130
diff changeset
   807
174
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   808
</section> <!-- h2 -->
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   809
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   810
</section> <!-- ldpr-resource -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   811
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   812
<section id="ldprs">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   813
<h2>RDF Source</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   814
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   815
<p>The following section contains normative clauses for <a title="">Linked Data Platform RDF Source</a>.</p>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   816
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   817
<section id="ldprs-general">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   818
<h2>General</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   819
516
b46f235b5fcc Fixed biblio and dfn references
sspeiche
parents: 515
diff changeset
   820
	<section id="ldprs-are-ldpr"><h2 class="normal">Each <a title="Linked Data Platform RDF Source">LDP RDF Source</a> MUST also be 
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   821
		a conforming <a title="Linked Data Platform Resource">LDP Resource</a> as defined in <a href="#ldpr-resource" class="sectionRef"></a>, along with the
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   822
		restrictions in this section. <a title="">LDP client</a>s MAY infer the following triple: one
553
3d27d1a1d553 change subclassof to rdf:type for MAY inferred triples
John Arwe
parents: 552
diff changeset
   823
		whose subject is the <a title="Linked Data Platform RDF Source">LDP-RS</a>, 
3d27d1a1d553 change subclassof to rdf:type for MAY inferred triples
John Arwe
parents: 552
diff changeset
   824
		whose predicate is <code>rdf:type</code>, 
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   825
		and whose object is <code>ldp:Resource</code>, 
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   826
		but there is no requirement to materialize this triple in the LDP-RS representation.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   827
	</h2></section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   828
	
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   829
	<section id="ldprs-gen-atleast1rdftype"><h2 class="normal"><a title="Linked Data Platform RDF Source">LDP-RSs</a> representations SHOULD have at least one <code>rdf:type</code>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   830
		set explicitly.  This makes the representations much more useful to
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   831
		client applications that don’t support inferencing.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   832
	</h2></section><!-- Was 4.2.5 / #ldpr-4_2_5 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   833
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   834
	<section id="ldprs-rdftype"><h2 class="normal">The representation of a LDP-RS MAY have an <code>rdf:type</code>
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   835
		of <code>ldp:RDFSource</code> for <a title="">Linked Data Platform RDF Source</a>.
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   836
	</h2></section><!-- Was 5.2.7 / #ldpc-5_2_7 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   837
		
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   838
	<section id="ldprs-gen-rdf"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST provide an RDF representation for <a title="Linked Data Platform RDF Source">LDP-RSs</a>. 
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   839
	The HTTP <code>Request-URI</code> of the LDP-RS is typically the subject of most triples in the response.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   840
	</h2></section><!-- Was 4.2.2 / #ldpr-4_2_2 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   841
	
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   842
	<section id="ldprs-gen-reusevocab"><h2 class="normal"><a title="Linked Data Platform RDF Source">LDP-RSs</a> SHOULD reuse existing vocabularies instead of creating
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   843
		their own duplicate vocabulary terms.  In addition to this general rule, some specific cases are
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   844
		covered by other conformance rules.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   845
	</h2></section><!-- Was 4.2.4 / #ldpr-4_2_4 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   846
	
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   847
	<section id="ldprs-gen-reusevocabsuchas"><h2 class="normal"><a title="Linked Data Platform RDF Source">LDP-RSs</a> predicates SHOULD use standard vocabularies such as Dublin Core
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   848
		[[!DC-TERMS]], RDF [[!rdf11-concepts]] and RDF Schema [[!rdf-schema]], whenever
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   849
		possible.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   850
	</h2></section><!-- Was 4.2.4.1 / #ldpr-4_2_4_1 -->
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   851
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   852
	<section id="ldp-cli-multitype"><h2 class="normal">In the absence of special knowledge of the application or domain, 
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   853
		<a title="LDP client">LDP clients</a> MUST assume that any LDP-RS can have multiple <code>rdf:type</code> triples with different objects.
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   854
	</h2></section> <!-- Was 4.3.5 / #ldpr-4_3_5 -->
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   855
	
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   856
	<section id="ldpr-cli-typeschange"><h2 class="normal">In the absence of special knowledge of the application or domain, 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   857
		<a title="LDP client">LDP clients</a> MUST assume that the <code>rdf:type</code> values
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   858
		of a given LDP-RS can change over time.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   859
	</h2></section> <!-- Was 4.3.6 / #ldpr-4_3_6 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   860
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   861
	<section id="ldpr-cli-openpreds"><h2 class="normal"><a title="LDP client">LDP clients</a> SHOULD always assume that the set of predicates for a
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   862
		LDP-RS of a particular type at an arbitrary server is open, in the
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   863
		sense that different resources of the same type may not all have the
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   864
		same set of predicates in their triples, and the set of predicates that
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   865
		are used in the state of any one LDP-RS is not limited to any pre-defined
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   866
		set.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   867
	</h2></section> <!-- Was 4.5.3 / #ldpr-ldpr-4_5_3 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   868
		
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   869
	<section id="ldprs-gen-noinferencing"><h2 class="normal"><a title="LDP server">LDP servers</a>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   870
		MUST NOT require LDP clients to implement inferencing in order to recognize the subset
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   871
		of content defined by LDP.  Other specifications built on top of LDP may require clients
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   872
		to implement inferencing [[!rdf11-concepts]].  The practical implication is that all content defined by LDP
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   873
		must be explicitly represented, unless noted otherwise within this document.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   874
	</h2></section><!-- Was 4.2.11 / #ldpr-4_2_11 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   875
	
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   876
	<section id="ldpr-cli-preservetriples"><h2 class="normal">
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   877
		A <a title="LDP client">LDP client</a> MUST preserve all triples retrieved from a LDP-RS using HTTP <code>GET</code> that
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   878
		it doesn’t change whether it understands the predicates or not, when
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   879
		its intent is to perform an update using HTTP <code>PUT</code>.  The use of HTTP
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   880
		<code>PATCH</code> instead of HTTP <code>PUT</code> for update avoids this burden for clients
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   881
		[[!RFC5789]].
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   882
	</h2></section> <!-- Was 4.5.5 / #ldpr-ldpr-4_5_5 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   883
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   884
	<section id="ldpr-cli-can-hint"><h2 class="normal">
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   885
		<a title="LDP client">LDP clients</a> MAY 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   886
		provide LDP-defined hints that allow servers to optimize the content of responses.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   887
		<a href="#prefer-parameters" class="sectionRef"></a> defines hints that apply to 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   888
		<a title="Linked Data Platform RDF Source">LDP-RSs</a>.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   889
	</h2></section> 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   890
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   891
	<section id="ldpr-cli-hints-ignorable"><h2 class="normal">
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   892
		<a title="LDP client">LDP clients</a> MUST 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   893
		be capable of processing responses formed by a LDP server that ignores hints,
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   894
		including LDP-defined hints.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   895
	</h2></section>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   896
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   897
	<div class="atrisk" id="atrisk-paging"><p class="atrisktext">Feature At Risk</p>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   898
	<p>The LDP Working Group proposes incorporation of the following clause to make LDP clients paging aware:</p>
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
   899
	<section id="ldpr-cli-paging"><h2 class="normal">
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   900
		<a title="LDP client">LDP clients</a> SHOULD 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   901
		be capable of processing successful HTTP <code>GET</code> responses formed by a LDP server
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   902
		that independently initiated paging, returning a page of representation instead of full resource
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   903
		representation [[!LDP-PAGING]].
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
   904
	</h2>
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   905
	</section> 
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
   906
	</div>
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   907
	
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   908
</section> <!-- ldprs-general -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   909
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   910
<section id="ldprs-HTTP_GET">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   911
<h2>HTTP GET</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   912
	<section id="ldprs-get-turtle"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST provide a <code>text/turtle</code>
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   913
		representation of the requested <a title="Linked Data Platform RDF Source">LDP-RS</a> whenever HTTP content negotiation
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   914
		does not force another outcome [[!turtle]].  In other words, if the server receives a <code>GET</code> request whose <code>Request-URI</code>
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   915
		identifies a <a title="">LDP-RS</a>, and either <code>text/turtle</code> has the highest relative quality
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   916
		factor (<code>q=</code> value) in the 
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   917
		Accept request header or that header is absent, then an <a title="">LDP server</a> has to respond with Turtle.
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   918
	</h2></section><!-- Was 4.3.3 / #ldpr-4_3_3 -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   919
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   920
	<section id="ldprs-get-jsonld"><h2 class="normal"><a title="LDP server">LDP servers</a> SHOULD offer a <code>application/ld+json</code>
565
76006e897d7f Servers should offer/accept JSON-LD representations of LDP-RSs
John Arwe
parents: 564
diff changeset
   921
		representation of the requested <a title="Linked Data Platform RDF Source">LDP-RS</a> [[!JSON-LD]].
76006e897d7f Servers should offer/accept JSON-LD representations of LDP-RSs
John Arwe
parents: 564
diff changeset
   922
	</h2></section><!-- new -->
76006e897d7f Servers should offer/accept JSON-LD representations of LDP-RSs
John Arwe
parents: 564
diff changeset
   923
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   924
</section> <!-- ldprs-HTTP_GET -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   925
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   926
</section> <!-- ldprs RDF Source-->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   927
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   928
<section id="ldpnr">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   929
<h2>Non-RDF Source</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   930
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   931
<p>The following section contains normative clauses for <a title="">Linked Data Platform Non-RDF Source</a>.</p>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   932
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   933
<section id="ldpnr-general">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   934
<h2>General</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   935
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   936
	<section id="ldpnr-are-ldpr"><h2 class="normal">Each <a title="Linked Data Platform Non-RDF Source">LDP Non-RDF Source</a> MUST also be 
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   937
		a conforming <a title="Linked Data Platform Resource">LDP Resource</a> in <a href="#ldpr-resource" class="sectionRef"></a>.  
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   938
		<a title="Linked Data Platform Non-RDF Source">LDP Non-RDF Sources</a> may not be able to fully express their
583
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   939
		state using RDF [[rdf11-concepts]]. 
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   940
	</h2></section>
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   941
	
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   942
	<section id="ldpnr-type"><h2 class="normal"><a title="LDP server">LDP servers</a> exposing an <a title="Linked Data Platform Non-RDF Source">LDP Non-RDF Source</a> 
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   943
		MAY advertise this by exposing a HTTP <code>Link</code> header
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   944
		with a target URI of <code>http://www.w3.org/ns/ldp#NonRDFSource</code>, and
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   945
		a link relation type of <code>type</code> (that is, <code>rel='type'</code>)
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   946
		in responses to requests made 
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   947
		to the LDP-NR's HTTP <code>Request-URI</code> [[!RFC5988]].  
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   948
	</h2></section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   949
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   950
</section> <!-- ldpnr Non-RDF Source-->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   951
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   952
</section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   953
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   954
</section> <!-- ldpr h1 -->
174
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   955
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   956
<section id="ldpc">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   957
<h1>Linked Data Platform Containers</h1>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   958
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   959
<section class="informative" id="ldpc-informative">		
466
7b840138bdf1 editorial cleanup; substantive hits to ldpc delete, remove reqt for direct containers to materialize insertedContentRelation (since it's value is fixed)
John Arwe
parents: 465
diff changeset
   960
<h2>Introduction</h2>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   961
	<p>Many HTTP applications and sites have organizing
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   962
		concepts that partition the overall space of resources into smaller
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   963
		containers. Blog posts are grouped into blogs, wiki pages are grouped
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   964
		into wikis, and products are grouped into catalogs. Each resource
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   965
		created in the application or site is created within an instance of
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   966
		one of these container-like entities, and users can list the existing
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   967
		artifacts within one. Containers answer some basic questions, which
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   968
		are:</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   969
	<ol>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   970
		<li>To which URLs can I POST to create new resources?</li>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   971
		<li>Where can I GET a list of existing resources?</li>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   972
		<li>How do I get information about the members along with the container?</li>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   973
		<li>How	can I ensure the resource data is easy to query?</li>
497
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   974
		<li>How	is the order of the container entries expressed? [[LDP-PAGING]]</li>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   975
	</ol>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   976
	<p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   977
		This document defines the representation and behavior of containers
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   978
		that address these issues. There are multiple types of containers defined
509
3b515a98338d fixed typos, removed empty section, fixed mixed set of "an LDP" and "a LDP"
Arnaud Le Hors <lehors@us.ibm.com>
parents: 508
diff changeset
   979
		to support a variety of use cases, all that support a base set of capabilities.
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   980
		The contents of a container is
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   981
		defined by a set of triples in its representation (and state) called
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   982
		the <a title="Containment triples">containment triples</a> that follow a fixed pattern.
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   983
		Additional types of containers allow for the set of members of a container to be
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   984
		defined by a set of triples in its representation called
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   985
		the <a title="Membership triples">membership triples</a> that follow a consistent pattern
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   986
		(see the linked-to definition for the possible patterns). 
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   987
		The membership triples of a container all
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   988
		have the same predicate, called the membership predicate, 
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   989
		and either the subject or the object is also a consistent value
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   990
		– the remaining position of the membership
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   991
		triples (the one that varies) define the members of the container. 
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   992
		In the simplest cases, the
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
   993
		consistent value will be the LDPC resource's URI, but it does not
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   994
		have to be. The membership predicate is also variable and will often
453
a70c321daf12 ACTION-120 (Part 3) Added ldp:member
sspeiche
parents: 452
diff changeset
   995
		be a predicate from the server application vocabulary or the <code>ldp:member</code> predicate.
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   996
	</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   997
	<p>This document includes a set of guidelines for
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
   998
		creating new resources and adding them to the list of
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
   999
		resources linked to a container. It goes on to explain how to learn about a set of related
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
  1000
		resources, regardless of how they were created or added to the container's membership.
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
  1001
		It also defines behavior when resources created using a container are later deleted;
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
  1002
		deleting containers removes membership information and
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
  1003
		possibly performs some cleanup tasks on unreferenced member resources.</p>
104
78fd14175304 ISSUE-59 5.3.2 limited rdf:type of ldp:Container, removed 5.6.3, reworded 5.6.2, updated 1.
sspeiche
parents: 102
diff changeset
  1004
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1005
	<p>The following illustrates a very simple
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1006
		container with only three members and some information about the
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1007
		container (the fact that it is a container and a brief title):</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1008
419
afe7bcda2e56 + ids on remaining examples
Eric Prud'hommeaux <eric@w3.org>
parents: 418
diff changeset
  1009
<pre class="example" id="ldpc-ex-simple"># The following is the representation of
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1010
#    http://example.org/c1/
309
ea3cce737943 Get examples to validate, per http://lists.w3.org/Archives/Public/public-ldp-wg/2013Aug/0002.html and messages that came up once those noted were fixed.
John Arwe
parents: 274
diff changeset
  1011
<!-- @base is here only so it's easier to paste into validators for checking -->
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1012
# @base &lt;http://example.org/c1/&gt;
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1013
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1014
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1015
72
73a5766e4794 ISSUE-29 - Use relative URIs in examples
sspeiche
parents: 71
diff changeset
  1016
&lt;&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1017
   a ldp:BasicContainer;
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1018
   dcterms:title "A very simple container";
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1019
   ldp:contains &lt;r1&gt;, &lt;r2&gt;, &lt;r3&gt;.</pre>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1020
 
522
b3fd53a7b048 Prepare for LC2
sspeiche
parents: 521
diff changeset
  1021
 <!-- TODO: consider if basic container diagram helps, if so...add for other cases too
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1022
   	<figure id="fig-ldpc-basic">
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1023
        <img src="images/ldpc-basic.png" alt="Sample Linked Data Platform Basic Container" />
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1024
        <figcaption>Sample of Linked Data Platform Basic Container</figcaption>
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1025
    </figure>
522
b3fd53a7b048 Prepare for LC2
sspeiche
parents: 521
diff changeset
  1026
     -->
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1027
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1028
	<p>The preceding example is very straightforward: there are containment triples
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1029
	whose subject is the container, whose predicate is  
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1030
	<code>ldp:contains</code>, and whose objects are the URIs of the contained resources,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1031
	and there is no distinction between member resources and contained resources. 
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1032
	A POST to this container will create a new resource
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1033
	and add it to the list of contained resources by adding a new containment triple
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1034
	to the container.  This type of container is called a
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1035
	<a title="">Linked Data Platform Basic Container</a>.  </p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1036
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1037
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1038
	Sometimes you have to build on existing models incrementally, so you have fewer degrees of
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1039
	freedom in the resource model.  In these situations, it can be useful to help clients map
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1040
	LDP patterns onto existing vocabularies, or to include members not created via the container; 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1041
	<a title="Linked Data Platform Direct Container">LDP Direct Containers</a>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1042
	meet those kinds of needs.  Direct Containers allow membership triples to use a subject
373
0562f8c4d4d4 Cleanup of known cases where text assumed "normal" membership triple pattern, did not consider the flipped/MO cases
John Arwe
parents: 372
diff changeset
  1043
	other than the container itself as the consistent membership value, and/or to use
467
0eed67a3db4e Simplified some of the container examples
sspeiche
parents: 466
diff changeset
  1044
	a  predicate from an application's domain model as the membership predicate. Let's
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1045
	start with a pre-existing domain resource for a person's net worth, as illustrated below:</p>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1046
			
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1047
<pre class="example" id="ldpc-ex-membership-partial"># The following is a representation of
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1048
#   http://example.org/netWorth/nw1
309
ea3cce737943 Get examples to validate, per http://lists.w3.org/Archives/Public/public-ldp-wg/2013Aug/0002.html and messages that came up once those noted were fixed.
John Arwe
parents: 274
diff changeset
  1049
<!-- @base is here only so it's easier to paste into validators for checking -->
ea3cce737943 Get examples to validate, per http://lists.w3.org/Archives/Public/public-ldp-wg/2013Aug/0002.html and messages that came up once those noted were fixed.
John Arwe
parents: 274
diff changeset
  1050
# @base &lt;http://example.org/netWorth/nw1/&gt;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1051
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1052
@prefix o: &lt;http://example.org/ontology/&gt;.
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1053
&lt;&gt;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1054
   a o:NetWorth;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1055
   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1056
   o:asset 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1057
      &lt;assets/a1&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1058
      &lt;assets/a2&gt;;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1059
   o:liability 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1060
      &lt;liabilities/l1&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1061
      &lt;liabilities/l2&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1062
      &lt;liabilities/l3&gt;.
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1063
</pre>
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1064
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1065
	In the preceding example, there is a <code>rdf:type</code> of <code>o:NetWorth</code> indicating the
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1066
	resource represents an instance of a person's net worth and a <code>o:netWorthOf</code> predicate indicating 
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1067
	the associated person.  There are two sets of same-subject, same-predicate triples; one for assets and
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1068
	one for liabilities.  Existing domain-specific applications exist that depend on those types and 
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1069
	predicates, so changing them <em>incompatibly</em> would be frowned upon.
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1070
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1071
	
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1072
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1073
	It would be helpful to be able to use LDP patterns to manage the assets and liabilities-related triples.
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1074
	Doing so using a Basic Container would require duplicating much of the information with different types and
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1075
	predicates, which would be onerous for large resources.  <a title="Linked Data Platform Direct Container">Direct Containers</a>
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1076
	provide a middle ground, by giving LDP clients a way to map existing domain-specific resources to LDP's
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1077
	types and interaction models.  
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1078
	In this specific example, 
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1079
	it would be helpful to be able to manage the assets and liabilities triples consistently, for example
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1080
	by using LDP containers.
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1081
	One way to do this is to create two containers, one to manage assets and another liabilities, 
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1082
	as separate HTTP resources.  Existing clients have no need to interact with those containers,
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1083
	whereas LDP-enabled clients now have container URLs that they can interact with.  The existing
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1084
	resource remains unchanged so that existing clients continue to function normally.
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1085
	This is illustrated in the set of related examples (one example per HTTP resource) below:
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1086
	</p>
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1087
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1088
<pre class="example" id="ldpc-ex-membership-full"># The following is a representation of the unchanged net worth LDPR
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1089
#   http://example.org/netWorth/nw1
309
ea3cce737943 Get examples to validate, per http://lists.w3.org/Archives/Public/public-ldp-wg/2013Aug/0002.html and messages that came up once those noted were fixed.
John Arwe
parents: 274
diff changeset
  1090
<!-- @base is here only so it's easier to paste into validators for checking -->
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1091
# @base &lt;http://example.org/netWorth/nw1/&gt;.
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1092
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
231
38d1a7faf1c4 Various editorial comments from PA
sspeiche
parents: 230
diff changeset
  1093
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1094
@prefix o: &lt;http://example.org/ontology/&gt;.
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1095
&lt;&gt;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1096
   a o:NetWorth;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1097
   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1098
   o:asset 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1099
      &lt;assets/a1&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1100
      &lt;assets/a2&gt;;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1101
   o:liability 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1102
      &lt;liabilities/l1&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1103
      &lt;liabilities/l2&gt;,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1104
      &lt;liabilities/l3&gt;.
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1105
</pre>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1106
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1107
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1108
	<p>The structure of the net worth resource is completely unchanged, so any existing 
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1109
	domain-specific applications continue to work without impact.
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1110
	LDP clients, on the other hand, have no way to understand that the asset and
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1111
	liability triples correspond in any way to LDP containers.  For that, they need the
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1112
	next two resources.
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1113
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1114
	<p>The first container is a <a title="Linked Data Platform Direct Container">LDP Direct Container</a> to manage assets.  
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1115
	Direct Containers add the concept of <a title="Membership">membership</a>
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1116
	and flexibility on how to specify the <a title="Membership triples">membership triples</a>.
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1117
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1118
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1119
<pre class="example" id="ldpc-ex-membership-subj"># The following is a representation of the asset container
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1120
#   http://example.org/netWorth/nw1/assets/
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1121
<!-- @base is here only so it's easier to paste into validators for checking -->
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1122
# @base &lt;http://example.org/netWorth/nw1/assets/&gt;.
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1123
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1124
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1125
@prefix o: &lt;http://example.org/ontology/&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1126
&lt;&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1127
   a ldp:DirectContainer;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1128
   dcterms:title "The assets of JohnZSmith";
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1129
   ldp:membershipResource &lt;http://example.org/netWorth/nw1/&gt;;
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1130
   ldp:hasMemberRelation o:asset;
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1131
   ldp:contains &lt;a1&gt;, &lt;a2&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1132
</pre>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1133
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1134
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1135
	In the preceding asset container, the consistent membership value 
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1136
	(<a title="Membership triples">membership-constant-URI</a>, still in the subject position) is not the
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1137
	container itself – it is the (separate) net worth resource. The
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1138
	membership predicate is <code>o:asset</code>,
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1139
	from the domain model. A POST of an asset representation to the asset container will create a new
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1140
	asset and add it to net-worth's list of	assets by adding a new membership triple
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1141
	to the resource and a containment triple to the container. 
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1142
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1143
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1144
	<p>The second container is a <a title="Linked Data Platform Direct Container">LDP Direct Container</a> to manage liabilities.  
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1145
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1146
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1147
<pre class="example" id="ldpc-ex-membership-full-liabcont"># The following is a representation of the liability container
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1148
#   http://example.org/netWorth/nw1/liabilities/
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1149
<!-- @base is here only so it's easier to paste into validators for checking -->
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1150
# @base &lt;http://example.org/netWorth/nw1/liabilities/&gt;.
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1151
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1152
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1153
@prefix o: &lt;http://example.org/ontology/&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1154
&lt;&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1155
   a ldp:DirectContainer;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1156
   dcterms:title "The liabilities of JohnZSmith";
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1157
   ldp:membershipResource &lt;http://example.org/netWorth/nw1/&gt;;
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1158
   ldp:hasMemberRelation o:liability;
460
1f6e06fd7272 typo: added missing brackets in example 7
Arnaud Le Hors <lehors@us.ibm.com>
parents: 459
diff changeset
  1159
   ldp:contains &lt;l1&gt;, &lt;l2&gt;, &lt;l3&gt;.
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1160
</pre>
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1161
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1162
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1163
	The preceding liability container is completely analogous to the asset container above, simply
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1164
	managing liabilities instead of assets and using the <code>o:liability</code> predicate.
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1165
	</p>
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1166
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1167
	To add a another liability, a client would POST something like this to the liability container:
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1168
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1169
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1170
<pre class="example" id="ldpc-ex-membership-add-new-liability"># The following is a representation of the liability to be added
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1171
#   http://example.org/netWorth/nw1/liabilities/new
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1172
<!-- @base is here only so it's easier to paste into validators for checking -->
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1173
# @base &lt;http://example.org/netWorth/nw1/liabilities/new&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1174
@prefix o: &lt;http://example.org/ontology/&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1175
&lt;&gt;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1176
   a o:Liability.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1177
   # plus any other properties that the domain says liabilities have
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1178
</pre>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1179
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1180
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1181
	Assuming the server successfully processes this request and assigns the URI
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1182
	<code>&lt;http://example.org/netWorth/nw1/liabilities/l4&gt;</code> to the 
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1183
	newly created liability resource, at least two new triples would be added.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1184
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1185
	<ol>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1186
	<li>In the net worth resource, <code>o:liability &lt;l4&gt;</code></li>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1187
	<li>In the liability container, <code>ldp:contains &lt;l4&gt;</code>.</li>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1188
	</ol>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1189
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1190
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1191
	You might wonder why we chose to create two new containers instead of making
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1192
	<code>http://example.org/netWorth/nw1</code> itself a container.
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1193
	A single net worth container would be a fine design if <code>http://example.org/netWorth/nw1</code>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1194
	had only assets or only liabilities (basically: only a single predicate to manage), 
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1195
	but since it has separate predicates for assets and liabilities an ambiguity arises:
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1196
	it is unspecified whether a client's creation request (POST)
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1197
	should add a new <code>o:asset</code> or <code>o:liability</code> triple. 
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1198
	Having separate <code>http://example.org/netWorth/nw1/assets/</code> 
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1199
	and <code>http://example.org/netWorth/nw1/liabilities/</code> containers
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1200
	allows both assets and liabilities to be created 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1201
	and linked to the net-worth resource using the appropriate predicate.  Similar ambiguities arise
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1202
	if the client wishes to list the members and/or contained resources.
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1203
	</p>
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1204
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1205
	<p>Continuing in the multiple containers direction, we will now extend our net worth example to add a container for
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1206
	advisors (people) that have managed the assets and liabilities.  We have decided
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1207
	to identify these advisors with URLs that contain a fragment (hash) to represent
462
3a7f9b05bad8 proofing through 454
John Arwe
parents: 461
diff changeset
  1208
	these real-world resources, not the documents that describe them.</p>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1209
	
515
9f5b3854a5bb Fixed a number of broken links
sspeiche
parents: 514
diff changeset
  1210
<pre class="example" id="ldpc-ex-membership-full-elab"># The following is an elaborated representation of
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1211
#   http://example.org/netWorth/nw1
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1212
# Adding o:advisor but eaving off o:asset and o:liability for brevity.
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1213
<!-- @base is here only so it's easier to paste into validators for checking -->
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1214
# @base &lt;http://example.org/netWorth/nw1/&gt;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1215
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1216
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1217
@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt;.
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1218
@prefix o: &lt;http://example.org/ontology/&gt;.
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1219
&lt;&gt;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1220
   a o:NetWorth;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1221
   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1222
   o:advisor
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1223
   	 &lt;advisors/bob#me&gt;,     # URI of a person
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1224
   	 &lt;advisors/marsha#me&gt;.
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1225
   	 
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1226
&lt;advisors/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1227
   a ldp:IndirectContainer;
465
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
  1228
   dcterms:title "The asset advisors of JohnZSmith";
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1229
   ldp:membershipResource &lt;&gt;;
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1230
   ldp:hasMemberRelation o:advisor;
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1231
   ldp:insertedContentRelation foaf:primaryTopic;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1232
   ldp:contains
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1233
   	 &lt;bob&gt;,     # URI of a document a.k.a. an information resource
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1234
   	 &lt;marsha&gt;.  # describing a person
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1235
</pre>	
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1236
	
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1237
	<p>To handle this type of indirection, the triple with predicate of <code>ldp:insertedContentRelation</code> and object of 
468
f960af656afb Simplified some of the container examples
sspeiche
parents: 467
diff changeset
  1238
	<code>foaf:primaryTopic</code> informs clients that when POSTing to this container, they need to include a triple of the
462
3a7f9b05bad8 proofing through 454
John Arwe
parents: 461
diff changeset
  1239
	form <code>(&lt;&gt;, foaf:primaryTopic, topic-URI)</code> to inform the server which URI to use 
3a7f9b05bad8 proofing through 454
John Arwe
parents: 461
diff changeset
  1240
	(<code>topic-URI</code>) in the new membership triple.</p>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1241
	
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1242
	<p>This type of container is referred to as a <a title="Linked Data Platform Indirect Container">LDP Indirect Container</a>. 
514
7e329a35960e A vs an fun
sspeiche
parents: 513
diff changeset
  1243
	It is similar to an <a title="Linked Data Platform Direct Container">LDP Direct Container</a> 
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1244
	but it provides an indirection to add (via a create request) as a member any resource, 
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1245
	including a URI representing a real-world object.  Create requests to 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1246
	<a title="Linked Data Platform Direct Container">LDP Direct Containers</a> 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1247
	can only add information resources [[WEBARCH]] - the documents they create - as members.
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1248
	</p>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1249
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1250
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1251
	To add a another advisor, a client would POST something like this to the advisors container:
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1252
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1253
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1254
<pre class="example" id="ldpc-ex-membership-add-new-advisor"># The following is a representation of the advisor to be added
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1255
#   http://example.org/netWorth/nw1/advisors/new
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1256
<!-- @base is here only so it's easier to paste into validators for checking -->
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1257
# @base &lt;http://example.org/netWorth/nw1/advisors/new&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1258
@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1259
@prefix o: &lt;http://example.org/ontology/&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1260
&lt;&gt;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1261
   a o:Advisor;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1262
   foaf:primaryTopic &lt;#me&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1263
   # plus any other properties that the domain says advisors have
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1264
</pre>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1265
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1266
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1267
	Assuming the server successfully processes this request and assigns the URI
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1268
	<code>&lt;http://example.org/netWorth/nw1/advisors/george&gt;</code> to the 
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1269
	newly created advisor resource, at least two new triples would be added.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1270
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1271
	<ol>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1272
	<li>In the net worth resource, <code>o:advisor &lt;advisors/george#me&gt;</code></li>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1273
	<li>In the advisors container, <code>ldp:contains &lt;george&gt;</code></li>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1274
	</ol>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1275
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1276
	<p>In summary, <a href="#fig-ldpc-types"></a> illustrates the LDP-defined container types: Basic, Direct, and Indirect, along
491
16d872a712b6 Adopted container hierarchy and merged Indirect Container into Container
sspeiche
parents: 489
diff changeset
  1277
	with their class relationship to types of LDPRs.</p>
450
e8d84dbc86dc ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 449
diff changeset
  1278
	
e8d84dbc86dc ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 449
diff changeset
  1279
	 <figure id="fig-ldpc-types">
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1280
        <img src="images/ldpc-hierarchy.png" alt="Types of Linked Data Platform Containers" />
491
16d872a712b6 Adopted container hierarchy and merged Indirect Container into Container
sspeiche
parents: 489
diff changeset
  1281
        <figcaption>Class relationship of types of Linked Data Platform Containers</figcaption>
450
e8d84dbc86dc ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 449
diff changeset
  1282
    </figure>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1283
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1284
	<p>The following table illustrates some differences between <a title="membership">membership</a> and 
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1285
	<a title="containment">containment</a> triples.  For details on the normative behavior, see appropriate sections
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1286
	below.
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1287
	</p>
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
  1288
	<table style="border: 1px solid gray" id="ldpc-mbrcntdiff">
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1289
		<thead><tr><th rowspan="2">Completed Request</th><th style="background:#FFFFFF;" colspan="2">Effects</th></tr>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
  1290
		       <tr class="oddrow"><th>Membership</th><th>Containment</th></tr></thead>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1291
		<tr><td>LDPR created in LDP-BC</td><td>New triple: (LDPC, ldp:contains, LDPR)</td><td>Same</td></tr>
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
  1292
		<tr><td>LDPR created in LDP-DC</td><td>New triple links LDP-RS to created LDPR. LDP-RS URI may be same as LDP-DC</td>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1293
			<td>New triple: (LDPC, ldp:contains, LDPR)</td></tr>
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1294
		<tr><td>LDPR created in LDP-IC</td><td>New triple links LDP-RS to content indicated URI</td>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1295
			<td>New triple: (LDPC, ldp:contains, LDPR)</td></tr>
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1296
		<tr><td>LDPR is deleted</td><td>Membership triple may be removed</td><td>(LDPC, ldp:contains, LDPR) triple is removed
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1297
			</td></tr>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1298
		<tr><td>LDPC is deleted</td><td>Triples and member resources may be removed</td><td>Triples of form 
476
330d6aac4572 Updated membership info table
sspeiche
parents: 475
diff changeset
  1299
			(LDPC, ldp:contains, LDPR) and contained LDPRs may be removed</td></tr>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1300
	</table>
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1301
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1302
<section id="ldpc-get_minimal-container_props"><h2 class="normal">Retrieving Only Minimal-Container Triples
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1303
	</h2><!-- Was 5.1.1 / #ldpc-get_minimal-container_props -->
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1304
	<p>The representation of a container
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1305
		that has many members will be large. There are several important
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1306
		cases where clients need to access only the subset of the container's properties 
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1307
		that are unrelated to member resources and unrelated to contained documents, for
514
7e329a35960e A vs an fun
sspeiche
parents: 513
diff changeset
  1308
		example to determine the membership triple pattern and membership predicate of an 
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1309
		LDP-DC.  LDP calls these <a title="Minimal-container triples">minimal-container triples</a>,
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1310
		because they are what remains when the container has zero members and zero contained resources.
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1311
		Since retrieving the whole container representation to
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1312
		get this information may be onerous for clients and cause unnecessary
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1313
		overhead on servers, we define a way to retrieve only
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1314
		these property values (and more generally, a way to retrieve only the 
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1315
		subset of properties used to address other major clusters of use cases).
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1316
		LDP adds parameters to the HTTP <code>Prefer</code> header's 
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1317
		<code>return=representation</code> preference for this 
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1318
		(see <a href="#prefer-parameters" class="sectionRef"></a> for details).
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1319
	</p>
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1320
	<p>The example listed here only shows
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1321
		a simple case where few minimal-container triples are
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1322
		retrieved. In real world situations more complex cases are likely, such as those that add other predicates to
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1323
		containers, for example providing validation information and
495
559a77692da5 Fixed up some specref references
sspeiche
parents: 494
diff changeset
  1324
		associating SPARQL endpoints. [[sparql11-query]]</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1325
	<p>
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1326
		Here is an example requesting the minimal-container triples of a
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
  1327
		container identified by the URL <code>http://example.org/container1/</code>.
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1328
	</p>
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1329
<p id="ldpc-ex-minimal-container">Request:</p>
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1330
<pre class="example">GET /container1 HTTP/1.1
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1331
Host: example.org
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1332
Accept: text/turtle; charset=UTF-8
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1333
Prefer: return=representation; include="http://www.w3.org/ns/ldp#PreferMinimalContainer"
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1334
</pre>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1335
<p>Response:</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1336
<pre class="example">HTTP/1.1 200 OK
13
eea17080fdf2 Minor typo fix and some notes
sspeiche
parents: 12
diff changeset
  1337
Content-Type: text/turtle; charset=UTF-8
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1338
ETag: "_87e52ce291112"
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1339
Content-Length: 325
541
3260779f121f Fixed error in Example 8
sspeiche
parents: 540
diff changeset
  1340
Link: &lt;http://www.w3.org/ns/ldp#DirectContainer&gt;; rel="type"
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1341
Preference-Applied: return=representation 
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1342
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1343
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1344
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1345
74
30624f0a7534 Adding trailing '/' on Container URLs to help with readability based on WG suggestion
sspeiche
parents: 73
diff changeset
  1346
&lt;http://example.org/container1/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1347
   a ldp:DirectContainer;
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1348
   dcterms:title "A Linked Data Platform Container of Acme Resources";
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1349
   ldp:membershipResource &lt;http://example.org/container1/&gt;;
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1350
   ldp:hasMemberRelation ldp:member;
415
12864dde579d Resolve ACTION-112 Update spec to reflect 10/28 resolution for Issue-81 part 1: new predicate names
John Arwe
parents: 414
diff changeset
  1351
   ldp:insertedContentRelation ldp:MemberSubject;
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1352
   dcterms:publisher &lt;http://acme.com/&gt;.</pre>
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
  1353
   
474
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1354
	<p>
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1355
		LDP recommends using PATCH to update these properties, if necessary.  It provides no facility
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1356
		for updating them via PUT without replacing the entire container's state.
a074b88f9b68 ACTION-132: Use Prefer in place of non-member properties resource
John Arwe
parents: 473
diff changeset
  1357
	</p>
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
  1358
	</section><!-- ldpc-get_minimal-container_props -->
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
  1359
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1360
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1361
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1362
<section id="ldpc-container">
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1363
<h2>Container</h2>
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1364
<p>The following section contains normative clauses for <a title="">Linked Data Platform Container</a>.</p>
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1365
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
  1366
<section id="ldpc-general">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
  1367
<h2>General</h2>
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
  1368
	<p>The Linked Data Platform does not define how clients
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
  1369
		discover <dfn><abbr title="Linked Data Platform Containers">LDPCs</abbr></dfn>.</p>
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
John Arwe <johnarwe@us.ibm.com>
parents: 21
diff changeset
  1370
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1371
	<section id="ldpc-isldpr"><h2 class="normal">Each <a title="">Linked Data Platform Container</a> MUST also be 
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
  1372
		a conforming <a title="">Linked Data Platform RDF Source</a>. <a title="">LDP client</a>s MAY infer the following triple: one
553
3d27d1a1d553 change subclassof to rdf:type for MAY inferred triples
John Arwe
parents: 552
diff changeset
  1373
	whose subject is the <a title="Linked Data Platform Container">LDPC</a>, 
3d27d1a1d553 change subclassof to rdf:type for MAY inferred triples
John Arwe
parents: 552
diff changeset
  1374
	whose predicate is <code>rdf:type</code>, 
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1375
	and whose object is <code>ldp:RDFSource</code>, 
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1376
	but there is no requirement to materialize this triple in the LDPC representation.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
  1377
	</h2></section><!-- Was 5.2.1 / #ldpc-5_2_1 -->
454
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1378
		
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
  1379
	<section id="ldpc-typecontainer"><h2 class="normal">The representation of a LDPC MAY have an <code>rdf:type</code>
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
  1380
		of <code>ldp:Container</code> for <a title="">Linked Data Platform Container</a>.
463
ae72388dbb82 start action-127 paging use of [23]xx response code; also changed 'informative' to 'non-normative' so sandro is happy[ier]
John Arwe
parents: 462
diff changeset
  1381
		Non-normative note: <a href="#ldp-rdfconcepts-extra-triples-types">LDPCs
489
a33c03215d88 Adopted new resource types: LDP RDF Source (LDP-RS) (was LDP RDF Resource) and LDP Non-RDF Source (LDP-NR) (was LDP Binary Resource)
sspeiche
parents: 488
diff changeset
  1382
		might have additional types</a>, like any <a title="Linked Data Platform RDF Source">LDP-RS</a>.
454
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1383
	</h2></section><!-- Was 5.2.7 / #ldpc-5_2_7 -->
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1384
	
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1385
	<section id="ldpc-nordfcontainertypes"><h2 class="normal">LDPC representations SHOULD NOT use RDF container types <code>rdf:Bag</code>,
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1386
		<code>rdf:Seq</code> or <code>rdf:List</code>.
4a28a15ee8fd ACTION-120 (complete) Updated LDPC general, GET and POST sections
sspeiche
parents: 453
diff changeset
  1387
	</h2></section><!-- Was 5.2.8 / #ldpc-5_2_8 -->
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
  1388
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
  1389
	<section id="ldpc-linktypehdr"><h2 class="normal"><a title="LDP server">LDP servers</a>
434
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
  1390
		exposing LDPCs
83b656184387 Action-122 close ISSUE-91, by adding that for an LDPC the link header is type=LDPC
John Arwe
parents: 433
diff changeset
  1391
		MUST advertise their LDP support by exposing a HTTP <code>Link</code> header
521
46584a80fd9b Must use LDPC subtypes for rel='type', per 20140303 resln
sspeiche
parents: 520
diff changeset
  1392
		with a target URI matching the type of container (see below) the
46584a80fd9b Must use LDPC subtypes for rel='type', per 20140303 resln
sspeiche
parents: