ldp.html
author Steve Speicher <sspeiche@gmail.com>
Tue, 09 Sep 2014 12:17:52 -0400
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parent 808 2100d73b2ad7
child 814 1eb37ced085c
permissions -rw-r--r--
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<!DOCTYPE html>
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<!-- 
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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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 -->
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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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        <!-- Test coverage: The following allows the spec to be annotated with information
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         from the test suite to help with understanding the coverage of each requirement. -->
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    <link rel="stylesheet" type="text/css" media="all" href="coverage.css">
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    <style type="text/css" media="print">
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        .coverage {
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            page-break-inside: avoid;
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        }
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    </style>
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    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
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    <script src="coverage.js"></script>
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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:           "CR",
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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:  "2014-06-19",
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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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          processVersion: 		2005,
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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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          crEnd: "2014-07-17",
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          testSuiteURI: "https://dvcs.w3.org/hg/ldpwg/raw-file/tip/tests/ldp-testsuite.html",
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          implementationReportURI: "https://dvcs.w3.org/hg/ldpwg/raw-file/tip/tests/reports/ldp.html",
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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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				"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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				"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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				"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/tests/ldp-testsuite.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 Candidate Recommendation document where the Working Group has addressed all
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   	 raised issues and seeks to gather implementation feedback.  For changes since last publication, see <a href="#history" class="sectionRef"></a>. 
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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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   <li>JSON-LD as a required <a href="#atrisk-ldpr-jsonld">response representation</a> and <a href="#atrisk-ldpc-jsonld">new member representation</a>.
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	</li>
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   <li>Support for <a href="#atrisk-indirect-containers">indirect containers</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
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			href="http://www.w3.org/TR/ldp-primer/"
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			class="external"
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			title="Linked Data Platform 1.0 Primer"
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			rel="nofollow">LDP Primer</a> 
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	provides an entry-level introduction with many examples in the context of a fictional application.
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	<a
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			href="http://www.w3.org/TR/ldp-bp/"
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			class="external"
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			title="LDP Best Practices and Guidelines"
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			rel="nofollow">LDP Best Practices and Guidelines</a> 
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			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.  
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	The LDPC often assists with managing the membership triples, whether or not the LDPC's
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	URI occurs in them.
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	<p></p></dd>
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	<dt><dfn>Membership triples</dfn></dt>
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	<dd>A set of triples that lists an LDPC's members.
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		A LDPC's membership triples all have one of the following patterns:
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		<table class="indented">
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		<tr>
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		<td style="background:#DDDDDD"> <var>membership-constant-URI</var> </td>
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		<td style="background:#FFFFFF"> <var>membership-predicate</var> </td>
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		<td style="background:#CCFFFF"> <var>member-derived-URI</var> </td>
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		</tr>
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		<tr>
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		<td style="background:#CCFFFF"> <var>member-derived-URI</var> </td>
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		<td style="background:#FFFFFF"> <var>membership-predicate</var> </td>
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		<td style="background:#DDDDDD"> <var>membership-constant-URI</var> </td>
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parents: 372
diff changeset
   406
		</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
   407
		</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
   408
		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
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parents: 372
diff changeset
   409
		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
   410
		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
   411
		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
   412
		<p>
503
d13ec755f468 Adjusted term membership triples and membership predicate
sspeiche
parents: 502
diff changeset
   413
		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
   414
		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
   415
		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
   416
		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
   417
		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
   418
		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
   419
	<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
   420
	
120
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   421
	<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
   422
	<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
   423
	<p></p></dd>
edf269bcce8a Issue-64 change ?non-member-properties into Link header with extension relation type
John Arwe
parents: 116
diff changeset
   424
	
465
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   425
	<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
   426
	<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
   427
	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
   428
	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
   429
	<p></p></dd>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   430
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   431
	<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
   432
	<dd>
561
ceeb37eb8f71 Clarify definitions of membership and containment triples to address Martin Nally comment
John Arwe
parents: 559
diff changeset
   433
	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
   434
	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
   435
	<p></p></dd>
26eb1d6d4fd6 fixing things found proofing SS updates and a few of Arnaud's email comments
John Arwe
parents: 464
diff changeset
   436
554
5a4fe2b38a2a rename empty container triples to minimal container triples
John Arwe
parents: 553
diff changeset
   437
	<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
   438
	<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
   439
	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
   440
	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
   441
	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
   442
	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
   443
	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
   444
	<p></p></dd>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   445
  </dl>
33
3c8c101f3f97 2012-12-28 - Fixed Typos. Separated some compound rules like 4.1.5. Rewording for clarity: 4.1.10,
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parents: 21
diff changeset
   446
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   447
<section id="conventions">
3c2aaaea1f73 Fixed vanishing section ref problem
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parents: 331
diff changeset
   448
<h2>Conventions Used in This Document</h2>
512
28fb37e65361 Added namespace definition
sspeiche
parents: 511
diff changeset
   449
	<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
   450
	<p>Sample resource representations are provided in <code>text/turtle</code>
495
559a77692da5 Fixed up some specref references
sspeiche
parents: 494
diff changeset
   451
		format [[turtle]].</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   452
	<p>Commonly used namespace prefixes:</p>
93
598be81efe5f Expanded on wording for 4.3 to be more consistent
sspeiche
parents: 92
diff changeset
   453
	<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
   454
	@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
   455
	@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
   456
	@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
   457
	@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
   458
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   459
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   460
    
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   461
<section id='conformance'>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   462
72
73a5766e4794 ISSUE-29 - Use relative URIs in examples
sspeiche
parents: 71
diff changeset
   463
<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
   464
<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
   465
  <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
   466
  <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
   467
  <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
   468
  <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
   469
  <li>5. Linked Data Platform Containers: <b>normative</b></li>
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   470
  <li>6. Notable information from normative references: <b>non-normative</b></li>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   471
  <li>7. HTTP Header Definitions: <b>normative</b></li>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   472
  <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
   473
  <li>A. Acknowledgements: <b>non-normative</b></li> 
525
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   474
  <li>B. Change History: <b>non-normative</b></li>
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   475
  <li>C.1 Normative references: <b>normative</b></li>
238e04f1e4f1 LC prep, custom SOTD and history sections
sspeiche
parents: 522
diff changeset
   476
  <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
   477
</ul>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   478
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   479
<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
   480
<a href="#ldpr" class="sectionRef"></a> and also
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   481
<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
   482
</p>
d85ca5c8cb68 Preparing for profiles - conformance section updates; add link to IETF draft
John Arwe
parents: 370
diff changeset
   483
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   484
<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
   485
<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
   486
<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
   487
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
   488
</p>
71
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   489
</section>
5a2794d3ab13 ISSUE-31 Added a more complete conformance section, motived by SPARQL 1.1
sspeiche
parents: 69
diff changeset
   490
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   491
<section id="ldpr">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   492
<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
   493
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   494
<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
   495
<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
   496
	<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
   497
		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
   498
		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
   499
		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
   500
		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
   501
		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
   502
	<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
   503
		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
   504
		others address additional needs.</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   505
	<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
   506
		questions such as:</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   507
	<ul>
231
38d1a7faf1c4 Various editorial comments from PA
sspeiche
parents: 230
diff changeset
   508
		<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
   509
		<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
   510
		<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
   511
				such as type changes?</li>
547
d34ef0884d9e Fixed LC-2840 clarity on burden of constraint
sspeiche
parents: 542
diff changeset
   512
		<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
   513
		<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
   514
	</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
   515
	<p>Additional non-normative guidance is available in the <a
808
2100d73b2ad7 add links to BP&G/Primer
John Arwe
parents: 803
diff changeset
   516
			href="http://www.w3.org/TR/ldp-bp/"
439
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   517
			class="external"
28beff0a4f89 Updated reference to LDP BPG editor's draft and added ref to LDP-UCR
sspeiche
parents: 438
diff changeset
   518
			title="LDP Best Practices and Guidelines"
808
2100d73b2ad7 add links to BP&G/Primer
John Arwe
parents: 803
diff changeset
   519
			rel="nofollow">LDP Best Practices and Guidelines</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
   520
		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
   521
	<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
   522
		<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
   523
		<li>Are there some typical vocabularies that should be reused?</li>
808
2100d73b2ad7 add links to BP&G/Primer
John Arwe
parents: 803
diff changeset
   524
		<li>What guidelines exist when interacting with LDPRs that are common but are not universal enough to specify normatively?</li>
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
   525
	</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
   526
	<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
   527
	</p>
67f04abb73e6 Factored out paging and sorting into separate spec LDP-Paging
sspeiche
parents: 496
diff changeset
   528
	<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
   529
	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
   530
	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
   531
	</p>
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   532
	<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
   533
	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
   534
	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
   535
	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
   536
	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
   537
	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
   538
	</p>
451
f68e4a59fba1 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 450
diff changeset
   539
    <figure id="fig-ldpr-types">
448
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   540
        <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
   541
        <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
   542
    </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
   543
    <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
   544
    <figure id="fig-ldpr-class">
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   545
       <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
   546
       <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
   547
     </figure>
72e366f1195f ACTION-123 Added concepts of LDP-RDF-Resource and LDP-Binary-Resource
sspeiche
parents: 447
diff changeset
   548
	
222
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   549
</section>
1db581afd1ec Added informative section 4.1 , therefore shifting all sections by one 4.1->4.2, etc
sspeiche
parents: 221
diff changeset
   550
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   551
<section id="ldpr-resource">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   552
<h2>Resource</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   553
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   554
<section id="ldpr-general">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   555
<h2>General</h2>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   556
		
637
87b108186dd5 clean up lingering 2616 references, adjust accept-post BNF for bis changes
John Arwe
parents: 636
diff changeset
   557
	<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
   558
	</h2></section><!-- Was 4.2.1 / #ldpr-4_2_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   559
	
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   560
	<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
   561
	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
   562
		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
   563
		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
   564
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   565
	<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
   566
		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
   567
		successful responses to HTTP <code>HEAD</code> requests.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   568
	</h2></section><!-- Was 4.2.8 / #ldpr-4_2_8 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   569
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   570
	<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
   571
		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
   572
		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
   573
		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
   574
		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
   575
		in all responses to requests made 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   576
		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
   577
	</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
   578
	<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
   579
		<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
   580
		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
   581
		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
   582
		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
   583
		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
   584
		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
   585
		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
   586
		HTTP interactions with LDPRs, that is
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   587
		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
   588
		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
   589
		</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
   590
		<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
   591
		Note: 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   592
		<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
   593
		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
   594
		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
   595
		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
   596
		</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
   597
	</blockquote>
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   598
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   599
	<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
   600
		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
   601
		<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
   602
		in the creation of a new resource.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   603
	</h2></section><!-- Was 4.2.12 / #ldpr-4_2_12 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   604
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   605
	<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
   606
		publish any constraints on <a title="LDP client">LDP clients’</a> ability to 
800
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   607
		create or update LDPRs, by adding a Link header with
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   608
		an appropriate context URI,
801
a4623989a4b9 Changed the constraints link relation to ldp#constrainedBy
John Arwe
parents: 800
diff changeset
   609
		a link relation of <code>http://www.w3.org/ns/ldp#constrainedBy</code>,
800
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   610
		and a target URI identifying a set of constraints
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   611
		[[!RFC5988]], to all responses to requests that 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
   612
		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
   613
		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
   614
		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
   615
		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
   616
		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
   617
		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
   618
		although machine-readable ones facilitate better client interactions.
800
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   619
		The appropriate context URI can vary based on the request's semantics and method;
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   620
		unless the response is otherwise
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   621
		constrained, the default (the effective request URI) SHOULD be used.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   622
	</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
   623
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   624
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   625
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   626
<section id="ldpr-HTTP_GET">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   627
<h2>HTTP GET</h2>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   628
	<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
   629
	</h2></section><!-- Was 4.3.1 / #ldpr-4_3_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   630
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   631
	<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
   632
		<a href="#ldpr-HTTP_OPTIONS" class="sectionRef"></a>.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   633
	</h2></section><!-- Was 4.3.2 / #ldpr-4_3_2 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   634
	
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   635
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   636
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   637
<section id="ldpr-HTTP_POST">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   638
<h2>HTTP POST</h2>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   639
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   640
		Per [[!RFC7231]], this HTTP method is optional and 
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   641
		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
   642
		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
   643
		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
   644
	</p>
479
c116a0ec33d8 Resolved a few editoral TODO's
John Arwe
parents: 477
diff changeset
   645
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   646
	<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
   647
		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
   648
		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
   649
		<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
   650
393
8197019f4604 ACTION-110 Update spec to reflect 10/21 resolution for normative changes to align vanilla/chocolate
John Arwe
parents: 389
diff changeset
   651
	</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   652
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   653
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   654
<section id="ldpr-HTTP_PUT">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   655
<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
   656
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   657
		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
   658
		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
   659
		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
   660
		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
   661
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   662
		
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   663
	<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
   664
		Any server-imposed constraints on LDPR creation or update  
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   665
		<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
   666
	</p>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   667
		
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   668
	<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
   669
		<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
   670
		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
   671
		the entity representation in the body of the request. 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   672
		<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
   673
		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
   674
		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
   675
		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
   676
		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
   677
		<code>PATCH</code>, not HTTP <code>PUT</code>.
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   678
	</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
   679
		
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   680
	<section id="ldpr-put-simpleupdate"><h2 class="normal"><a title="LDP server">LDP servers</a> SHOULD allow clients to update resources without
802
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   681
		requiring detailed knowledge of <a href="#ldpr-gen-pubclireqs">server-specific constraints</a>.  
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   682
		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
   683
	</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
   684
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   685
	<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
   686
		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
   687
		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
   688
		<a title="LDP server">LDP servers</a> MUST 
600
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   689
		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
   690
		409 Conflict). 
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   691
		<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
   692
		information about which properties could not be
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   693
		persisted.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   694
		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
   695
	</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
   696
	<blockquote>
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   697
		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
   698
		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
   699
		server-managed properties 
67d13fb3a21f changes motivated by joe ross's comments
John Arwe
parents: 585
diff changeset
   700
		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
   701
		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
   702
		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
   703
	</blockquote>
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   704
	
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   705
	<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
   706
		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
   707
		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
   708
		<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
   709
		[[!RFC7231]].  
519
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   710
		<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
   711
		information about which properties could not be
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   712
		persisted.
0a61b68f0a67 Tweaked LDPR PUT clauses to better match new defn of LDPR
sspeiche
parents: 518
diff changeset
   713
		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
   714
		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
   715
	</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
   716
	
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   717
	<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
   718
		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
   719
		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
   720
		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
   721
		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
   722
		(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
   723
		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
   724
		(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
   725
	</h2></section><!-- Was 4.5.2 / #ldpr-4_5_2 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   726
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   727
	<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
   728
	</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
   729
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   730
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   731
		
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   732
<section id="ldpr-HTTP_DELETE">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   733
<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
   734
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   735
		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
   736
		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
   737
		When a LDP server supports this method, 
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   738
		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
   739
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   740
		
548
ab2a3418fb01 minor editorial fixes
John Arwe
parents: 547
diff changeset
   741
	<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
   742
	<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
   743
	</p>
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_HEAD">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   747
<h2>HTTP HEAD</h2>
515
9f5b3854a5bb Fixed a number of broken links
sspeiche
parents: 514
diff changeset
   748
	<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
   749
		<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
   750
		Thus, implementers should also carefully read sections <a href="#ldpr-HTTP_GET"></a> 
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   751
		and <a href="#ldpr-HTTP_OPTIONS"></a>.</p>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   752
	<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
   753
	</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
   754
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   755
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   756
<section id="ldpr-HTTP_PATCH">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   757
<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
   758
	<p>
636
46b0ed651256 updated to use RFC numbers newly assigned to http-bis and prefer header
John Arwe
parents: 634
diff changeset
   759
		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
   760
		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
   761
		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
   762
		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
   763
	</p>
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   764
		
e36ed82a31a7 Put final stake in heart of 'informative' (waves to Sandro), update boilerplate for readability per Arnaud
John Arwe
parents: 474
diff changeset
   765
	<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
   766
		Any server-imposed constraints on LDPR creation or update  
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   767
		<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
   768
	</p>
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   769
	
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   770
	<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
   771
		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
   772
		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
   773
	</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
   774
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   775
</section>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   776
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   777
<section id="ldpr-HTTP_OPTIONS">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   778
<h2>HTTP OPTIONS</h2>
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   779
	<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
   780
		beyond those in [[!RFC7231]].  Other sections of this specification, for example 
167
ae4592939639 issue-80 Add Accept-Post
John Arwe
parents: 158
diff changeset
   781
		<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
   782
		<a href="#header-accept-post">Accept-Post</a>,
158
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   783
		add other requirements on <code>OPTIONS</code> responses.
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   784
		</p>
8af0b25f2748 issue-32 MUST support OPTIONS
John Arwe
parents: 152
diff changeset
   785
435
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   786
	<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
   787
	</h2></section><!-- Was 4.9.1 / #ldpr-4_9_1 -->
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   788
		
e9efbc3a3ba8 First attempt at correcting section ordering and anchors
sspeiche
parents: 434
diff changeset
   789
	<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
   790
		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
   791
		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
   792
	</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
   793
174
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   794
</section> <!-- h2 -->
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   795
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   796
</section> <!-- ldpr-resource -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   797
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   798
<section id="ldprs">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   799
<h2>RDF Source</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   800
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   801
<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
   802
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   803
<section id="ldprs-general">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   804
<h2>General</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   805
516
b46f235b5fcc Fixed biblio and dfn references
sspeiche
parents: 515
diff changeset
   806
	<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
   807
		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
   808
		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
   809
		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
   810
		whose predicate is <code>rdf:type</code>, 
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   811
		and whose object is <code>ldp:Resource</code>, 
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   812
		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
   813
	</h2></section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   814
	
800
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   815
	<section id="ldprs-gen-atleast1rdftype"><h2 class="normal"><a title="Linked Data Platform RDF Source">LDP-RSs</a> representations SHOULD 
89d99b066aca Clarify Link context URIs, member creation media types, prep for other changes
John Arwe
parents: 775
diff changeset
   816
		have at least one <code>rdf:type</code>
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   817
		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
   818
		client applications that don’t support inferencing.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   819
	</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
   820
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   821
	<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
   822
		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
   823
	</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
   824
		
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   825
	<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
   826
	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
   827
	</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
   828
	
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   829
	<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
   830
		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
   831
		covered by other conformance rules.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   832
	</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
   833
	
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   834
	<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
   835
		[[!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
   836
		possible.
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   837
	</h2></section><!-- Was 4.2.4.1 / #ldpr-4_2_4_1 -->
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   838
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   839
	<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
   840
		<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
   841
	</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
   842
	
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   843
	<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
   844
		<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
   845
		of a given LDP-RS can change over time.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   846
	</h2></section> <!-- Was 4.3.6 / #ldpr-4_3_6 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   847
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   848
	<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
   849
		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
   850
		sense that different resources of the same type may not all have the
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   851
		same set of predicates in their triples, and the set of predicates that
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   852
		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
   853
		set.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   854
	</h2></section> <!-- Was 4.5.3 / #ldpr-ldpr-4_5_3 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   855
		
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   856
	<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
   857
		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
   858
		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
   859
		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
   860
		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
   861
	</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
   862
	
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   863
	<section id="ldpr-cli-preservetriples"><h2 class="normal">
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   864
		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
   865
		it doesn’t change whether it understands the predicates or not, when
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   866
		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
   867
		<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
   868
		[[!RFC5789]].
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   869
	</h2></section> <!-- Was 4.5.5 / #ldpr-ldpr-4_5_5 -->
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   870
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   871
	<section id="ldpr-cli-can-hint"><h2 class="normal">
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   872
		<a title="LDP client">LDP clients</a> MAY 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   873
		provide LDP-defined hints that allow servers to optimize the content of responses.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   874
		<a href="#prefer-parameters" class="sectionRef"></a> defines hints that apply to 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   875
		<a title="Linked Data Platform RDF Source">LDP-RSs</a>.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   876
	</h2></section> 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   877
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   878
	<section id="ldpr-cli-hints-ignorable"><h2 class="normal">
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   879
		<a title="LDP client">LDP clients</a> MUST 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   880
		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
   881
		including LDP-defined hints.
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   882
	</h2></section>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   883
	
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   884
	<div class="atrisk" id="atrisk-paging"><p class="atrisktext">Feature At Risk</p>
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   885
	<p>The LDP Working Group proposes incorporation of the following clause to make LDP clients paging aware:</p>
802
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   886
	</div>
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
   887
	<section id="ldpr-cli-paging"><h2 class="normal">
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   888
		<a title="LDP client">LDP clients</a> SHOULD 
552
4d99968383f2 editorial changes - "an" to "a" etc
John Arwe
parents: 551
diff changeset
   889
		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
   890
		that independently initiated paging, returning a page of representation instead of full resource
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   891
		representation [[!LDP-PAGING]].
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
   892
	</h2>
518
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   893
	</section> 
f64cf213ec81 Folded #ldpclients section into #ldprs
sspeiche
parents: 517
diff changeset
   894
	
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   895
</section> <!-- ldprs-general -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   896
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   897
<section id="ldprs-HTTP_GET">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   898
<h2>HTTP GET</h2>
802
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   899
	<section id="ldprs-get-turtle"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST offer a <code>text/turtle</code>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   900
		representation of the requested <a title="Linked Data Platform RDF Source">LDP-RS</a> [[!turtle]].  
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   901
	</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
   902
802
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   903
	<div class="atrisk" id="atrisk-ldpr-jsonld"><p class="atrisktext">Feature At Risk</p>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   904
	<p>The LDP Working Group proposes incorporation of the following clause (changed from Should to Must):</p>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   905
	</div>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   906
	<section id="ldprs-get-jsonld"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST 
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   907
		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
   908
		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
   909
	</h2></section><!-- new -->
76006e897d7f Servers should offer/accept JSON-LD representations of LDP-RSs
John Arwe
parents: 564
diff changeset
   910
802
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   911
	<section id="ldprs-get-conneg"><h2 class="normal"><a title="LDP server">LDP servers</a> MUST provide a <code>text/turtle</code>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   912
		representation of the requested <a title="Linked Data Platform RDF Source">LDP-RS</a> whenever HTTP content negotiation
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   913
		does not force another outcome and the <code>Accept</code> request header is present.  
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   914
		In other words, if the server receives a <code>GET</code> request whose <code>Request-URI</code>
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   915
		identifies a <a title="">LDP-RS</a>, and <code>text/turtle</code> has the highest relative quality
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   916
		factor (<code>q=</code> value) in the 
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   917
		Accept request header, then an <a title="">LDP server</a> has to respond with Turtle,
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   918
		even if other media types share the highest relative quality factor.
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   919
		If the <code>Accept</code> request header is absent, 
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   920
		then <a title="LDP server">LDP servers</a> SHOULD respond with <code>text/turtle</code>.
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   921
	</h2></section><!-- Was 4.3.3 / #ldpr-4_3_3 -->
2292dbc59fff Should return Turtle if Accept is absent, JSON-LD required (at risk), clarify creates
John Arwe
parents: 801
diff changeset
   922
513
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   923
</section> <!-- ldprs-HTTP_GET -->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   924
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   925
</section> <!-- ldprs RDF Source-->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   926
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   927
<section id="ldpnr">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   928
<h2>Non-RDF Source</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   929
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   930
<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
   931
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   932
<section id="ldpnr-general">
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   933
<h2>General</h2>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   934
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   935
	<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
   936
		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
   937
		<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
   938
		state using RDF [[rdf11-concepts]]. 
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   939
	</h2></section>
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   940
	
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   941
	<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
   942
		MAY advertise this by exposing a HTTP <code>Link</code> header
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   943
		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
   944
		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
   945
		in responses to requests made 
196b408851fd Added usage for ldp:NonLDPSource
sspeiche
parents: 580
diff changeset
   946
		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
   947
	</h2></section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   948
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   949
</section> <!-- ldpnr Non-RDF Source-->
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   950
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   951
</section>
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   952
2df2933649d4 Split out different kinds of LDPRs into their own subsection
sspeiche
parents: 512
diff changeset
   953
</section> <!-- ldpr h1 -->
174
72ce83f4ec7f issue-58 actions 88,89 (new predicates)
John Arwe
parents: 173
diff changeset
   954
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   955
<section id="ldpc">
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   956
<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
   957
333
3c2aaaea1f73 Fixed vanishing section ref problem
sspeiche
parents: 331
diff changeset
   958
<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
   959
<h2>Introduction</h2>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   960
	<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
   961
		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
   962
		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
   963
		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
   964
		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
   965
		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
   966
		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
   967
		are:</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   968
	<ol>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   969
		<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
   970
		<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
   971
		<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
   972
		<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
   973
		<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
   974
	</ol>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   975
	<p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   976
		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
   977
		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
   978
		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
   979
		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
   980
		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
   981
		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
   982
		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
   983
		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
   984
		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
   985
		(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
   986
		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
   987
		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
   988
		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
   989
		– 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
   990
		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
   991
		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
   992
		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
   993
		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
   994
		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
   995
	</p>
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
   996
	<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
   997
		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
   998
		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
   999
		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
  1000
		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
  1001
		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
  1002
		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
  1003
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1004
	<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
  1005
		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
  1006
		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
  1007
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1008
<em>Request</em> to <code>http://example.org/c1/</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1009
<pre class="example" id="ldpc-ex-simple-req">GET /c1/ HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1010
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1011
Accept: text/turtle</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1012
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1013
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1014
<pre class="example" id="ldpc-ex-simple">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1015
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1016
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1017
ETag: "8caab0784220148bfe98b738d5bb6d13"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1018
Accept-Post: text/turtle, application/ld+json
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1019
Allow: POST,GET,OPTIONS,HEAD,PUT
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1020
Link: &lt;http://www.w3.org/ns/ldp#BasicContainer&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1021
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1022
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1023
<!-- @base <http://example.org/c1/>. -->
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1024
@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
  1025
@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
  1026
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1027
&lt;http://example.org/c1/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1028
   a ldp:BasicContainer;
486
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1029
   dcterms:title "A very simple container";
974b4886835b change all unicode 00A0 (non-breaking space) to blank (0020)
John Arwe
parents: 485
diff changeset
  1030
   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
  1031
 
522
b3fd53a7b048 Prepare for LC2
sspeiche
parents: 521
diff changeset
  1032
 <!-- 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
  1033
   	<figure id="fig-ldpc-basic">
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1034
        <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
  1035
        <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
  1036
    </figure>
522
b3fd53a7b048 Prepare for LC2
sspeiche
parents: 521
diff changeset
  1037
     -->
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1038
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1039
	<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
  1040
	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
  1041
	<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
  1042
	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
  1043
	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
  1044
	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
  1045
	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
  1046
	<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
  1047
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1048
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1049
	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
  1050
	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
  1051
	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
  1052
	<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
  1053
	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
  1054
	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
  1055
	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
  1056
	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
  1057
			
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1058
<em>Request</em> to <code>http://example.org/netWorth/nw1</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1059
<pre class="example" id="ldpc-ex-membership-partial-req">GET /netWorth/nw1 HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1060
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1061
Accept: text/turtle</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1062
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1063
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1064
<pre class="example" id="ldpc-ex-membership-partial">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1065
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1066
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1067
ETag: "0f6b5bd8dc1f754a1238a53b1da34f6b"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1068
Link: &lt;http://www.w3.org/ns/ldp#RDFSource&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1069
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1070
Allow: GET,OPTIONS,HEAD,PUT,DELETE
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1071
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1072
<!-- @base <http://example.org/netWorth/nw1>. -->
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1073
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1074
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1075
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1076
&lt;http://example.org/netWorth/nw1&gt;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1077
   a o:NetWorth;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1078
   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1079
   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
  1080
      &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
  1081
      &lt;assets/a2&gt;;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1082
   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
  1083
      &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
  1084
      &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
  1085
      &lt;liabilities/l3&gt;.
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1086
</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
  1087
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1088
	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
  1089
	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
  1090
	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
  1091
	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
  1092
	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
  1093
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1094
	
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1095
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1096
	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
  1097
	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
  1098
	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
  1099
	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
  1100
	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
  1101
	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
  1102
	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
  1103
	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
  1104
	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
  1105
	as separate HTTP resources.  Existing clients have no need to interact with those containers,
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1106
	whereas LDP-enabled clients now have container URLs that they can interact with.  The existing
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1107
	resource remains unchanged so that existing clients continue to function normally.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1108
	This is illustrated in the set of related examples, one example per HTTP resource, starting with
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1109
	the LDP-RS example from before:
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1110
	</p>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1111
	
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1112
<em>Request</em> to <code>http://example.org/netWorth/nw1</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1113
<pre class="example" id="ldpc-ex-membership-full-req">GET /netWorth/nw1 HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1114
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1115
Accept: text/turtle</pre>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1116
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1117
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1118
<pre class="example" id="ldpc-ex-membership-full">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1119
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1120
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1121
ETag: "0f6b5bd8dc1f754a1238a53b1da34f6b"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1122
Link: &lt;http://www.w3.org/ns/ldp#RDFSource&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1123
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1124
Allow: GET,OPTIONS,HEAD,PUT,DELETE
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1125
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1126
<!-- @base <http://example.org/netWorth/nw1>. -->
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1127
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1128
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1129
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1130
&lt;http://example.org/netWorth/nw1&gt;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1131
   a o:NetWorth;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1132
   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1133
   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
  1134
      &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
  1135
      &lt;assets/a2&gt;;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1136
   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
  1137
      &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
  1138
      &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
  1139
      &lt;liabilities/l3&gt;.
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1140
</pre>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1141
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
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1143
	<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
  1144
	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
  1145
	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
  1146
	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
  1147
	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
  1148
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1149
	<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
  1150
	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
  1151
	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
  1152
	</p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1153
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1154
<em>Request</em> to <code>http://example.org/netWorth/nw1/assets/</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1155
<pre class="example" id="ldpc-ex-membership-subj-req">GET /netWorth/nw1/assets/ HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1156
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1157
Accept: text/turtle</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1158
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1159
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1160
<pre class="example" id="ldpc-ex-membership-subj">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1161
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1162
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1163
ETag: "6df36eef2631a1795bfe9ab76760ea75"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1164
Accept-Post: text/turtle, application/ld+json
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1165
Allow: POST,GET,OPTIONS,HEAD
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1166
Link: &lt;http://www.w3.org/ns/ldp#DirectContainer&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1167
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1168
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1169
<!-- @base <http://example.org/netWorth/nw1/assets/>. -->      
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1170
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1171
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1172
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1173
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1174
&lt;http://example.org/netWorth/nw1/assets/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1175
   a ldp:DirectContainer;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1176
   dcterms:title "The assets of JohnZSmith";
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1177
   ldp:membershipResource &lt;http://example.org/netWorth/nw1&gt;;
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1178
   ldp:hasMemberRelation o:asset;
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1179
   ldp:contains &lt;a1&gt;, &lt;a2&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1180
</pre>
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1181
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1182
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1183
	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
  1184
	(<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
  1185
	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
  1186
	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
  1187
	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
  1188
	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
  1189
	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
  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
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1192
	<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
  1193
	</p>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1194
<em>Request</em> to <code>http://example.org/netWorth/nw1/liabilities/</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1195
<pre class="example" id="ldpc-ex-membership-full-liabcont-req">GET /netWorth/nw1/liabilities/ HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1196
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1197
Accept: text/turtle</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
  1198
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1199
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1200
<pre class="example" id="ldpc-ex-membership-full-liabcont">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1201
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1202
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1203
ETag: "9f50da01f792281ddcfebe9788372d07"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1204
Link: &lt;http://www.w3.org/ns/ldp#DirectContainer&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1205
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1206
Accept-Post: text/turtle, application/ld+json
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1207
Allow: POST,GET,OPTIONS,HEAD
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1208
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1209
<!-- @base <http://example.org/netWorth/nw1/liabilities/>. -->
456
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1210
@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
6130538abdf0 ACTION-124 LDPR-RR as named graphs
sspeiche
parents: 454
diff changeset
  1211
@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1212
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1213
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1214
&lt;http://example.org/netWorth/nw1/liabilities/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1215
   a ldp:DirectContainer;
87
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1216
   dcterms:title "The liabilities of JohnZSmith";
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1217
   ldp:membershipResource &lt;http://example.org/netWorth/nw1&gt;;
488
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1218
   ldp:hasMemberRelation o:liability;
460
1f6e06fd7272 typo: added missing brackets in example 7
Arnaud Le Hors <lehors@us.ibm.com>
parents: 459
diff changeset
  1219
   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
  1220
</pre>
671fe85a872b Inserted examples 2&3, a more complete NetWorth resource
sspeiche
parents: 86
diff changeset
  1221
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1222
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1223
	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
  1224
	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
  1225
	</p>
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1226
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1227
	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
  1228
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1229
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1230
<em>Request</em> to <code>http://example.org/netWorth/nw1/liabilities/</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1231
<pre class="example" id="ldpc-ex-membership-add-new-liability-req">POST /netWorth/nw1/liabilities/ HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1232
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1233
Accept: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1234
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1235
Content-Length: 63
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1236
<!-- @base is here only so it's easier to paste into validators for checking -->
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1237
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1238
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1239
&lt;&gt;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1240
   a o:Liability.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1241
   # 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
  1242
</pre>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1243
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1244
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1245
<pre class="example" id="ldpc-ex-membership-add-new-liability">HTTP/1.1 201 Created
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1246
Location: http://example.org/netWorth/nw1/liabilities/l4
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1247
Date: Thu, 12 Jun 2014 19:56:13 GMT
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1248
Link: &lt;http://www.w3.org/ns/ldp#DirectContainer&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1249
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1250
</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1251
564
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
	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
  1254
	<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
  1255
	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
  1256
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1257
	<ol>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1258
	<li>In the net worth resource, <code>&lt;http://example.org/netWorth/nw1&gt; o:liability &lt;liabilities/l4&gt;</code></li>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1259
	<li>In the liability container, <code>&lt;http://example.org/netWorth/nw1/liabilities/&gt; ldp:contains &lt;l4&gt;</code>.</li>
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1260
	</ol>
12
a3be44430b37 ISSUE-8 rename from LDBP to LDP and add remainder of open issues
sspeiche
parents:
diff changeset
  1261
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1262
	<p>
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1263
	You might wonder why we chose to create two new containers instead of making
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1264
	<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
  1265
	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
  1266
	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
  1267
	but since it has separate predicates for assets and liabilities an ambiguity arises:
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1268
	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
  1269
	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
  1270
	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
  1271
	and <code>http://example.org/netWorth/nw1/liabilities/</code> containers
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1272
	allows both assets and liabilities to be created 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1273
	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
  1274
	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
  1275
	</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
  1276
803
f66df9ac9d03 Indirect containers (at risk)
John Arwe
parents: 802
diff changeset
  1277
	<div class="atrisk" id="atrisk-indir-cont-ex"><p class="atrisktext">Feature At Risk</p>
f66df9ac9d03 Indirect containers (at risk)
John Arwe
parents: 802
diff changeset
  1278
	<p>The LDP Working Group proposes the REMOVAL of indirect containers, unless more implementation reports arrive shortly.</p>
f66df9ac9d03 Indirect containers (at risk)
John Arwe
parents: 802
diff changeset
  1279
	</div>
f66df9ac9d03 Indirect containers (at risk)
John Arwe
parents: 802
diff changeset
  1280
	
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1281
	<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
  1282
	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
  1283
	to identify these advisors with URLs that contain a fragment (hash) to represent
462
3a7f9b05bad8 proofing through 454
John Arwe
parents: 461
diff changeset
  1284
	these real-world resources, not the documents that describe them.</p>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1285
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1286
<em>Request</em> to <code>http://example.org/netWorth/nw1</code>:
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1287
<pre class="example" id="ldpc-ex-membership-full-elab-req">GET /netWorth/nw1 HTTP/1.1
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1288
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1289
Accept: text/turtle</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1290
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1291
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1292
<pre class="example" id="ldpc-ex-membership-full-elab">HTTP/1.1 200 OK
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1293
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1294
Date: Thu, 12 Jun 2014 18:26:59 GMT
653
71bc4ab13849 Fixed ETag headers to be strong and quoted
sspeiche
parents: 647
diff changeset
  1295
ETag: "e8d129f45ca31848fb56213844a32b49"
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1296
Link: &lt;http://www.w3.org/ns/ldp#DirectContainer&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1297
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1298
Allow: GET,OPTIONS,HEAD,PUT,DELETE
646
d97c97e51f86 Updated examples in Prefer section to be in request/response format
sspeiche
parents: 644
diff changeset
  1299
Transfer-Encoding: chunked
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1300
<!-- @base <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
  1301
@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
  1302
@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
  1303
@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1304
@prefix o: &lt;http://example.org/ontology#&gt;.
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1305
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1306
&lt;http://example.org/netWorth/nw1&gt;
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1307
   a o:NetWorth;
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1308
   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
  1309
   o:advisor
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1310
   	 &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
  1311
   	 &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
  1312
   	 
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1313
&lt;advisors/&gt;
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1314
   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
  1315
   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
  1316
   ldp:membershipResource &lt;&gt;;
6bc3c9a2b2f7 Adopted new predicate names: ldp:membershipResource, ldp:hasMemberRelation and ldp:isMemberOfRelation
sspeiche
parents: 487
diff changeset
  1317
   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
  1318
   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
  1319
   ldp:contains
566
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1320
   	 &lt;bob&gt;,     # URI of a document a.k.a. an information resource
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1321
   	 &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
  1322
</pre>	
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1323
	
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1324
	<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
  1325
	<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
  1326
	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
  1327
	(<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
  1328
	
563
4e61db8dbfa2 Update narrative on net worth example (#s 2-5, section 5.1, at time of writing)
John Arwe
parents: 562
diff changeset
  1329
	<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
  1330
	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
  1331
	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
  1332
	including a URI representing a real-world object.  Create requests to 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1333
	<a title="Linked Data Platform Direct Container">LDP Direct Containers</a> 
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1334
	can only add information resources [[WEBARCH]] - the documents they create - as members.
cfc0c8b396a8 fix typos
John Arwe
parents: 565
diff changeset
  1335
	</p>
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1336
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1337
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1338
	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
  1339
	</p>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1340
<em>Request</em> to <code>http://example.org/netWorth/nw1/advisors/</code>:
659
775deb8e635f CR prep, fixing pubrules checker problems
sspeiche
parents: 657
diff changeset
  1341
<pre class="example" id="ldpc-ex-membership-add-new-advisor-req">POST /netWorth/nw1/advisors/ HTTP/1.1
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1342
Host: example.org
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1343
Accept: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1344
Content-Type: text/turtle
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1345
Slug: george
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1346
Content-Length: 72
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1347
<!-- @base <http://example.org/netWorth/nw1/advisors/george>. -->
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1348
@prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt;.
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1349
@prefix o: &lt;http://example.org/ontology#&gt;.
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1350
&lt;&gt;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1351
   a o:Advisor;
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1352
   foaf:primaryTopic &lt;#me&gt;.
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1353
   # 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
  1354
</pre>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1355
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1356
<em>Response:</em>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1357
<pre class="example" id="ldpc-ex-membership-add-new-advisor">HTTP/1.1 201 Created
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1358
Location: http://example.org/netWorth/nw1/advisors/george
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1359
Date: Thu, 12 Jun 2014 19:56:13 GMT
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1360
Link: &lt;http://www.w3.org/ns/ldp#RDFSource&gt;; rel="type",
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1361
      &lt;http://www.w3.org/ns/ldp#Resource&gt;; rel="type"
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1362
</pre>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1363
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1364
	<p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1365
	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
  1366
	<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
  1367
	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
  1368
	</p>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1369
	<ol>
644
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1370
	<li>In the net worth resource, <code>&lt;http://example.org/netWorth/nw1&gt; o:advisor &lt;advisors/george#me&gt;</code></li>
afe041e0f7fc Updated examples in container sections to be in request/response format
sspeiche
parents: 637
diff changeset
  1371
	<li>In the advisors container, <code>&lt;http://example.org/netWorth/nw1/advisors/&gt; ldp:contains &lt;george&gt;</code></li>
564
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1372
	</ol>
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1373
cba76c3813b9 More example revisions, and fix bug in advisors example
John Arwe
parents: 563
diff changeset
  1374
	<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
  1375
	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
  1376
	
e8d84dbc86dc ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 449
diff changeset
  1377
	 <figure id="fig-ldpc-types">
506
c828dbebaebb Split out different kinds of LDPCs into their own subsection
sspeiche
parents: 505
diff changeset
  1378
        <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
  1379
        <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
  1380
    </figure>
452
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1381
c4b538b7e57f ACTION-120 (Part 2) Added concepts of containers (basic, direct and indirect) to LDPC intro
sspeiche
parents: 451
diff changeset
  1382
	<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
  1383
	<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
  1384
	below.
449
623bbfdea989 ACTION-120 (Part 1) Added concepts of containers (basic, direct and indirect)
sspeiche
parents: 448
diff changeset
  1385
	</p>
527
b86124412c7a html5 validation fixes
sspeiche
parents: 525
diff changeset
  1386
	<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
  1387
		<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
  1388
		       <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
  1389
		<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
  1390
		<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