Author: buildbot
Date: Sat Jan 10 22:15:37 2015
New Revision: 935748
Log:
Staging update by buildbot for jena
Added:
websites/staging/jena/trunk/content/documentation/migrate_jena2_jena3.html
Modified:
websites/staging/jena/trunk/content/ (props changed)
Propchange: websites/staging/jena/trunk/content/
------------------------------------------------------------------------------
--- cms:source-revision (original)
+++ cms:source-revision Sat Jan 10 22:15:37 2015
@@ -1 +1 @@
-1650735
+1650820
Added:
websites/staging/jena/trunk/content/documentation/migrate_jena2_jena3.html
==============================================================================
--- websites/staging/jena/trunk/content/documentation/migrate_jena2_jena3.html
(added)
+++ websites/staging/jena/trunk/content/documentation/migrate_jena2_jena3.html
Sat Jan 10 22:15:37 2015
@@ -0,0 +1,222 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<html>
+<head>
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE- 2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+ <title>Apache Jena - Migrating from Jena2 to Jena3</title>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+ <link href="/css/bootstrap.min.css" rel="stylesheet" media="screen">
+ <link href="/css/bootstrap-extension.css" rel="stylesheet" type="text/css">
+ <link href="/css/jena.css" rel="stylesheet" type="text/css">
+ <link rel="shortcut icon" href="/images/favicon.ico" />
+
+ <script src="https://code.jquery.com/jquery-2.0.3.min.js";></script>
+ <script src="/js/jena-navigation.js" type="text/javascript"></script>
+ <script src="/js/bootstrap.min.js" type="text/javascript"></script>
+ <script src="/js/breadcrumbs.js" type="text/javascript"></script>
+
+ <script src="/js/improve.js" type="text/javascript"></script>
+
+
+ <!-- Uncomment to enable code coloring <link href="/css/codehilite.css"
rel="stylesheet" type="text/css"> -->
+
+</head>
+
+<body>
+
+
+
+<nav class="navbar navbar-default" role="navigation">
+<div class="container">
+ <div class="navbar-header">
+
+ <button type="button" class="navbar-toggle" data-toggle="collapse"
data-target=".navbar-ex1-collapse">
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ <span class="icon-bar"></span>
+ </button>
+ <a class="navbar-brand" href="/index.html">
+ <img class="logo-menu" src="/images/jena-logo/jena-logo-notext-small.png"
alt="jena logo">Apache Jena</a>
+ </div>
+
+ <div class="collapse navbar-collapse navbar-ex1-collapse">
+ <ul class="nav navbar-nav">
+ <li id="homepage"><a href="/index.html"><span class="glyphicon
glyphicon-home"></span> Home</a></li>
+ <li id="download"><a href="/download/index.cgi"><span
class="glyphicon glyphicon-download-alt"></span> Download</a></li>
+ <li class="dropdown">
+ <a href="#" class="dropdown-toggle"
data-toggle="dropdown"><span class="glyphicon glyphicon-book"></span> Learn <b
class="caret"></b></a>
+ <ul class="dropdown-menu">
+ <li class="dropdown-header">Tutorials</li>
+ <li><a href="/tutorials/index.html">Overview</a></li>
+ <li><a href="/tutorials/rdf_api.html">RDF core API
tutorial</a></li>
+ <li><a href="/tutorials/sparql.html">SPARQL tutorial</a></li>
+ <li><a
href="/documentation/query/manipulating_sparql_using_arq.html">Manipulating
SPARQL using ARQ</a></li>
+ <li><a href="/tutorials/using_jena_with_eclipse.html">Using
Jena with Eclipse</a></li>
+ <li><a
href="/documentation/notes/index.html">How-To's</a></li>
+ <li class="divider"></li>
+ <li class="dropdown-header">References</li>
+ <li><a href="/documentation/index.html">Overview</a></li>
+ <li><a href="/documentation/javadoc/">Javadoc</a></li>
+ <li><a href="/documentation/rdf/index.html">RDF API</a></li>
+ <li><a href="/documentation/io/">RDF I/O</a></li>
+ <li><a href="/documentation/query/index.html">ARQ
(SPARQL)</a></li>
+ <li><a href="/documentation/query/text-query.html">Text
Search</a></li>
+ <li><a href="/documentation/tdb/index.html">TDB</a></li>
+ <li><a href="/documentation/sdb/index.html">SDB</a></li>
+ <li><a href="/documentation/jdbc/index.html">SPARQL over
JDBC</a></li>
+ <li><a
href="/documentation/security/index.html">Security</a></li>
+ <li><a
href="/documentation/serving_data/index.html">Fuseki</a></li>
+ <li><a
href="/documentation/assembler/index.html">Assembler</a></li>
+ <li><a href="/documentation/ontology/">Ontology API</a></li>
+ <li><a href="/documentation/inference/index.html">Inference
API</a></li>
+ <li><a href="/documentation/tools/index.html">Command-line
tools</a></li>
+ <li><a
href="/documentation/extras/index.html">Extras</a></li>
+ </ul>
+ </li>
+
+ <li class="drop down">
+ <a href="#" class="dropdown-toggle"
data-toggle="dropdown"><span class="glyphicon glyphicon-book"></span> Javadoc
<b class="caret"></b></a>
+ <ul class="dropdown-menu">
+ <li><a href="/documentation/javadoc/jena/">Jena Core</a></li>
+ <li><a href="/documentation/javadoc/arq/">ARQ</a></li>
+ <li><a href="/documentation/javadoc/tdb/">TDB</a></li>
+ <li><a href="/documentation/javadoc/text/">Text
Search</a></li>
+ <li><a href="/documentation/javadoc/spatial/">Spatial
Search</a></li>
+ <li><a
href="/documentation/javadoc/security/">Security</a></li>
+ <li><a href="/documentation/javadoc/jdbc/">JDBC</a></li>
+ <li><a href="/documentation/javadoc/fuseki/">Fuseki</a></li>
+ </ul>
+ </li>
+
+ <li id="ask"><a href="/help_and_support/index.html"><span
class="glyphicon glyphicon-question-sign"></span> Ask</a></li>
+
+ <li class="dropdown">
+ <a href="#" class="dropdown-toggle"
data-toggle="dropdown"><span class="glyphicon glyphicon-bullhorn"></span> Get
involved <b class="caret"></b></a>
+ <ul class="dropdown-menu">
+ <li><a
href="/getting_involved/index.html">Contribute</a></li>
+ <li><a
href="/help_and_support/bugs_and_suggestions.html">Report a bug</a></li>
+ <li class="divider"></li>
+ <li class="dropdown-header">Project</li>
+ <li><a href="/about_jena/about.html">About Jena</a></li>
+ <li><a href="/about_jena/roadmap.html">Roadmap</a></li>
+ <li><a
href="/about_jena/architecture.html">Architecture</a></li>
+ <li><a href="/about_jena/team.html">Project team</a></li>
+ <li><a href="/about_jena/contributions.html">Related
projects</a></li>
+ <li class="divider"></li>
+ <li class="dropdown-header">ASF</li>
+ <li><a href="http://www.apache.org/";>Apache Software
Foundation</a></li>
+ <li><a
href="http://www.apache.org/licenses/LICENSE-2.0";>License</a></li>
+ <li><a
href="http://www.apache.org/foundation/thanks.html";>Thanks</a></li>
+ <li><a
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Sponsor</a></li>
+ <li><a
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+ </ul>
+ </li>
+
+ <li id="edit"><a
href="javascript:improveThisPage(location.href);" title="Improve this Page (Use
username anonymous and empty password)"><span class="glyphicon
glyphicon-pencil"></span> Improve this Page</a></li>
+ </ul>
+ </div>
+</div>
+</nav>
+
+
+<div class="container">
+ <div class="row">
+ <div class="col-md-12">
+ <div id="breadcrumbs"></div>
+ <h1 class="title">Migrating from Jena2 to Jena3</h1>
+ <p>Apache Jena3 is a major version release for Jena - it is not binary or
compatibly with
+Jena2. The migration consists of package renaming and database reloading.</p>
+<h2 id="key-changes">Key Changes</h2>
+<ul>
+<li><a href="#packaging">Package renaming</a></li>
+<li><a href="#rdf11-plain-literals">RDF 1.1 Semantics for plain
literals</a></li>
+<li><a href="#persistent-data">Persistent data (TDB, SDB) should be
reloaded.</a></li>
+</ul>
+<h2 id="package-name-changes-packaging">Package Name Changes (#packaging)</h2>
+<p>Packages with a base name of <code>com.hp.hpl.jena</code> become
<code>org.apache.jena</code>.</p>
+<p>Global replacement of <code>import com.hp.hpl.jena.</code> with <code>import
+org.apache.jena.</code> will cover a large majority of cases.</p>
+<p>The Jena APIs remain unchanaged expect for this renaming.</p>
+<p>Only java package names are being changed. Vocabularies are not
affected.</p>
+<p>@@ <em>Provisional : We need to identify if an key other changes are to be
included.</em></p>
+<h2 id="rdf-11">RDF 1.1</h2>
+<p>Many of the changes and refinements for RDF 1.1 are already in Jena2. The
+parsers for Turtle-family languages already follow the RDF 1.1 grammars
+and output is compatible with RDF 1.1 and earlier output details.</p>
+<h3 id="rdf-11-changes-for-plain-literals-rdf11-plain-literals">RDF 1.1
changes for plain literals (#rdf11-plain-literals)</h3>
+<p>In RDF 1.1, all literals have a datatype. The datatype of a plain literal
+with no language tag (also called a "simple literal") has datatype
+<code>xsd:string</code>. A plain literal with a language tag has datatype
+<code>rdf:langString</code>.</p>
+<p>Consequences:</p>
+<p><code>"abc"</code> and <code>"abc"^^xsd:string</code> are the same RDF term
in RDF 1.1. Jena2
+memory models have always treated these as the same value, but different
+terms. Jena2 peristent models treated them as two separate term and two
+separate values.</p>
+<p>Data is not invalidated by this change.</p>
+<ul>
+<li>
+<p>The parsers will give datatypes to all data read, there is no need to
+change the data. </p>
+</li>
+<li>
+<p>Output is in the datatype-less form (an abbreaviated syntax) even in
+N-triples.</p>
+</li>
+<li>
+<p>Applications with explicitly use <code>^^xsd:string</code> (or in RDF/XML,
+<code>rdf:datatype="http://www.w3.org/2001/XMLSchema#string";</code>) will see
a change
+in appearance.</p>
+</li>
+<li>
+<p>Applications with a mix of plain literals and explicit
<code>^^xsd:string</code>
+(the RDF 1.1 Work Group belived these to be uncommon) may see changes.</p>
+</li>
+<li>
+<p>Applications that do their own RDF output need to be careful to not assume
+that having datatype excludes the possibility of also having a language
+tag.</p>
+</li>
+</ul>
+<h2 id="persistent-data-persistent-data">Persistent Data
(#persistent-data)</h2>
+<p>For data stored in <a href="tdb/">TDB</a> and SDB, it is advisable to
reload data.</p>
+<p>Data that does not use explicit <code>xsd:string</code> should be safe but
it is still
+recommended that data is reloaded at a convenient time.</p>
+ </div>
+</div>
+
+</div><!--/.container -->
+
+ <footer class="footer">
+ <div class="container">
+ <p>Copyright © 2011–2014 The Apache Software Foundation,
Licensed under
+ the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache
License, Version 2.0</a>.
+ </p>
+ <p>
+ Apache Jena, Jena, the Apache Jena project logo,
+ Apache and the Apache feather logos are trademarks of The Apache
Software Foundation.
+ </p>
+ </div>
+ </footer>
+
+
+</body>
+</html>
