configuring-persistenceunits-in-tests.html - tomee-site-pub - Git at Google

 <!DOCTYPE html>
 <html lang="en">
   <head>

     <meta charset="UTF-8">
       <title>Configuring PersistenceUnits in Tests</title>
     <meta name="description" content="Apache TomEE">
     <meta name="author" content="Apache TomEE">
     <meta name="google-translate-customization" content="f36a520c08f4c9-0a04e86a9c075ce9-g265f3196f697cf8f-10">
     <meta http-equiv="Pragma" content="no-cache">
     <meta http-equiv="Expires" content="0">
     <meta http-equiv="Cache-Control" content="no-store, no-cache, must-revalidate, max-age=0">

     <!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
     <!--[if lt IE 9]>
       <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
     <![endif]-->

     <!-- Le styles -->
     <link href="./resources/css/bootstrap.css" rel="stylesheet">
     <link href="./resources/css/prettify.css" rel="stylesheet">
     <!--link href="./resources/css/bootstrap-mods.css" rel="stylesheet"-->
     <link href="./resources/css/main.css" rel="stylesheet">
     <link href="./resources/font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">

     <script type="text/javascript">
         var t = encodeURIComponent(document.title.replace(/^\s+|\s+$/g,""));
         var u = encodeURIComponent(""+document.URL);

       function fbshare () {
           window.open(
                   "http://www.facebook.com/sharer/sharer.php?u="+u,
                   'Share on Facebook',
                   'width=640,height=426');
       };
       function gpshare () {
           window.open(
                   "https://plus.google.com/share?url="+u,
                   'Share on Google+',
                   'width=584,height=385');
       };
       function twshare () {
           window.open(
                   "https://twitter.com/intent/tweet?url="+u+"&text="+t,
                   'Share on Twitter',
                   'width=800,height=526');
       };
       function pinshare () {
           window.open("//www.pinterest.com/pin/create/button/?url="+u+"&media=http%3A%2F%2Ftomee.apache.org%2Fresources%2Fimages%2Ffeather-logo.png&description="+t,
                   'Share on Pinterest',
                   'width=800,height=526');
       };
     </script>

     <!-- Le fav and touch icons -->
     <link rel="shortcut icon" href="./favicon.ico">
     <link rel="apple-touch-icon" href="./resources/images/apple-touch-icon.png">
     <link rel="apple-touch-icon" sizes="72x72" href="./resources/images/apple-touch-icon-72x72.png">
     <link rel="apple-touch-icon" sizes="114x114" href="./resources/images/apple-touch-icon-114x114.png">

     <script src="./resources/js/prettify.js" type="text/javascript"></script>
     <script src="./resources/js/jquery-latest.js"></script>
     <script src="http://platform.twitter.com/widgets.js" type="text/javascript"></script>
     <script src="./resources/js/common.js"></script>
     <script src="./resources/js/prettyprint.js"></script>
     <!--script src="//assets.pinterest.com/js/pinit.js" type="text/javascript" async></script//-->

     <script type="text/javascript">

       var _gaq = _gaq || [];
       _gaq.push(['_setAccount', 'UA-2717626-1']);
       _gaq.push(['_setDomainName', 'apache.org']);
       _gaq.push(['_trackPageview']);

       (function() {
         var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
         ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
         var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
       })();

     </script>
   </head>

   <body>

     <div class="topbar" data-dropdown="dropdown">
       <div class="fill">
         <div class="container">
           <a class="brand" href="./index.html">Apache TomEE</a>
           <ul class="nav">
               <li class="dropdown">
                   <a class="dropdown-toggle" data-toggle="dropdown" href="#">
                   Apache
                       <b class="caret"></b>
                   </a>
                   <ul class="dropdown-menu">
                      <!-- <li><a href="./misc/whoweare.html">Who we are?</a></li> -->
                      <!-- <li><a href="./misc/heritage.html">Heritage</a></li> -->
                      <li><a href="http://www.apache.org">Apache Home</a></li>
                      <!-- <li><a href="./misc/resources.html">Resources</a></li> -->
                      <li><a href="./misc/contact.html">Contact</a></li>
                      <li><a href="./misc/legal.html">Legal</a></li>
                      <li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
                      <li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
                      <li class="divider"/>
                      <li><a href="http://www.apache.org/security">Security</a></li>
                   </ul>
               </li>
               <li><a href="./index.html">Home</a></li>
               <li><a href="./downloads.html">Downloads</a></li>
               <li><a href="./documentation.html">Documentation</a></li>
               <li><a href="./examples-trunk/index.html">Examples</a></li>
               <li><a href="./support.html">Support</a></li>
               <li><a href="./contribute.html">Contribute</a></li>
               <li><a href="./security/index.html">Security</a></li>
           </ul>

             <!-- Google CSE Search Box Begins  -->
             <FORM class="pull-right" id="searchbox_010475492895890475512:_t4iqjrgx90" action="http://www.google.com/cse">
                 <INPUT type="hidden" name="cx" value="010475492895890475512:_t4iqjrgx90">
                 <INPUT type="hidden" name="cof" value="FORID:0">
                 <INPUT size="18" width="130" style="width:130px" name="q" type="text" placeholder="Search">
             </FORM>
             <!--<SCRIPT type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_010475492895890475512:_t4iqjrgx90"></SCRIPT>-->
             <!-- Google CSE Search Box Ends -->
         </div>
       </div>
     </div>

     <div class="container">


 <div class="page-header">
     <small><a href="./index.html">Home</a></small><br>
     <h1>Configuring PersistenceUnits in Tests

         <div style="float: right; position: relative; bottom: -10px; ">
             <a onclick="javascript:gpshare()" class="gp-share sprite" title="Share on Google+">share [gp]</a>
             <a onclick="javascript:fbshare()" class="fb-share sprite" title="Share on Facebook">share [fb]</a>
             <a onclick="javascript:twshare()" class="tw-share sprite" title="Share on Twitter">share [tw]</a>
             <a onclick="javascript:pinshare()" class="pin-share sprite" title="Share on Pinterest">share [pin]</a>
             <a data-toggle="modal" href="#edit" class="edit-page" title="Contribute to this Page">contribute</a>
         </div>
     </h1>
 </div>

 <p><a name="ConfiguringPersistenceUnitsinTests-Overridingthepersistence.xml"></a></p>

 <h1>Overriding the persistence.xml</h1>

 <p>The most common situation in EJB related testing by far is the need to
 alter your persistence.xml for a test environment.</p>

 <p><a name="ConfiguringPersistenceUnitsinTests-Overridingthe<jta-data-source>and<non-jta-data-source>"></a></p>

 <h2>Overriding the jta-data-source and non-jta-data-source</h2>

 <p>OpenEJB will automatically use the DataSources you have setup in your test
 environment, we're pretty good at guessing the right DataSources you intend
 even if the names don't match exactly -- or in some cases at all.  If there
 is only one DataSource configured, it's very easy for us to guess the
 DataSource to use.</p>

 <p>This allows you to keep your persistence.xml configured for your production
 environment and helps eliminate the need for a "test" persistence.xml
 (though we do have that functionality).  A log line will be printed saying
 if we had to adjust the DataSources of your persistence.xml.</p>

 <p><a name="ConfiguringPersistenceUnitsinTests-Overridingthepersistence-unit<properties>"></a></p>

 <h2>Overriding the persistence-unit properties</h2>

 <p>You can override any property in your test setup via either system
 properties or the initial context properties.  The format is:</p>

 <p><code>&lt;unit-name&gt;.&lt;property&gt;=&lt;value&gt;</code></p>

 <p>So for example with the following persistence.xml:</p>

 <pre><code>&lt;persistence&gt;
   &lt;persistence-unit name="movie-unit"&gt;
     &lt;provider&gt;org.hibernate.ejb.HibernatePersistence&lt;/provider&gt;
     &lt;jta-data-source&gt;movieDatabase&lt;/jta-data-source&gt;
     &lt;non-jta-data-source&gt;movieDatabaseUnmanaged&lt;/non-jta-data-source&gt;
     &lt;properties&gt;
       &lt;property name="hibernate.hbm2ddl.auto" value="create-drop"/&gt;
       &lt;property name="hibernate.max_fetch_depth" value="3"/&gt;
     &lt;/properties&gt;
   &lt;/persistence-unit&gt;
 &lt;/persistence&gt;
 </code></pre>

 <p>You can override and add persistence unit properties in your test case.
 There are currently no facilities for removing them (if you have a need for
 that let us know -- it hasn't really come up so far).</p>

 <pre><code>Properties p = new Properties();
 p.put(Context.INITIAL_CONTEXT_FACTORY,"org.apache.openejb.client.LocalInitialContextFactory");

 p.put("movie-unit.hibernate.hbm2ddl.auto", "update");
 p.put("movie-unit.hibernate.dialect", "org.hibernate.dialect.HSQLDialect");

 context = new InitialContext(p);
 </code></pre>

 <p>The overriding order is as follows: 1 = highest, 4 = lowest.</p>

 <ol>
 <li>InitialContext properties</li>
 <li>jndi.properties from the classpath</li>
 <li>System properties</li>
 <li>persistence.xml properties</li>
 </ol>

 <p>By default there are no overrides in 1-3, so #4 is the only source of
 information.  </p>

 <p>In the above example there would be exactly three properties for the "movie-unit" persistence unit:</p>

 <ul>
 <li>hibernate.hbm2ddl.auto = update</li>
 <li>hibernate.max_fetch_depth = 3</li>
 <li>hibernate.dialect = org.hibernate.dialect.HSQLDialect</li>
 </ul>

 <p>These properties would be passed by OpenEJB directly to the persistence
 provider (in this case Hibernate).  With one exception OpenEJB does not
 understand or modify these properties.  Details on that one exception
 below.</p>

 <h3>Common mistakes</h3>

 <p>Note that you <strong>must</strong> use the <strong>unit name</strong> as the prefix.  This will not work:</p>

 <pre><code>    Properties p = new Properties();
     p.put(Context.INITIAL_CONTEXT_FACTORY,"org.apache.openejb.client.LocalInitialContextFactory");

     p.put("hibernate.hbm2ddl.auto", "update");
     p.put("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");

     context = new InitialContext(p);
 </code></pre>

 <p>Currently, only properties that start with the unit name are search and applied.</p>

 <h3>No need to specify a "transaction lookup" property</h3>

 <p>All vendors have such a property for getting a reference to the container's
 TransactionManager and nothing works if this is not set correctly to the
 OpenEJB specific class.  To make the lives of users easier, OpenEJB will
 take the liberty of setting it for you.</p>

 <p>Here are the persistence provider classes we understand and the defaults we
 will set for you:</p>

 <h4>Provider org.hibernate.ejb.HibernatePersistence</h4>

 <p>When using this provider, the <em>hibernate.transaction.manager_lookup_class</em>
 will be automatically set by OpenEJB to
 <em>org.apache.openejb.hibernate.TransactionManagerLookup</em>.  If the property
 is already set in the persistence unit it will be overwritten if it starts
 with the standard "org.hibernate.transaction." prefix.  </p>

 <p>Custom lookup implementations will never be overwritten automatically.</p>

 <h4>Provider oracle.toplink.essentials.PersistenceProvider</h4>

 <p>Or <em>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</em>.</p>

 <p>When using this provider, the <em>toplink.target-server</em> will be automatically
 set by OpenEJB to <em>org.apache.openejb.toplink.JTATransactionController</em>.
 If the property is already set in the persistence unit it will be
 overwritten if it starts with the standard "oracle.toplink.transaction."
 prefix.  </p>

 <p>Custom transaction controller implementations will never be overwritten automatically.</p>

 <h4>Provider org.eclipse.persistence.jpa.PersistenceProvider</h4>

 <p>Or <em>org.eclipse.persistence.jpa.osgi.PersistenceProvider</em>.</p>

 <p>When using this provider, the <em>eclipselink.target-server</em> will be
 automatically set by OpenEJB to
 <em>org.apache.openejb.eclipselink.JTATransactionController</em>.  If the property
 is already set in the persistence unit it will be overwritten if it starts
 with the standard "org.eclipse.persistence.transaction." prefix.  </p>

 <p>Custom transaction controller implementations will never be overwritten automatically.</p>

 <h4>Provider org.apache.openjpa.persistence.PersistenceProviderImpl</h4>

 <p>OpenJPA is capable of discovering the correct method for locating the
 TransactionManager without the need for users to specify the specific
 strategy.  Therefore no specific "magic" is required.</p>


         <div id="edit" class="modal hide fade in" style="display: none; ">
             <div class="modal-header">
                 <a class="close" data-dismiss="modal">x</a>

                 <h3>Thank you for contributing to the documentation!</h3>
             </div>
             <div class="modal-body">
                 <h4>Any help with the documentation is greatly appreciated.</h4>
                 <p>All edits are reviewed before going live, so feel free to do much more than fix typos or links.  If you see a page that could benefit from an entire rewrite, we'd be thrilled to review it.  Don't be surprised if we like it so much we ask you for help with other pages :)</p>
                 <small>NOTICE: unless indicated otherwise on the pages in question, all editable content available from apache.org is presumed to be licensed under the Apache License (AL) version 2.0 and hence all submissions to apache.org treated as formal Contributions under the license terms.</small>
                 <!--[if gt IE 6]>
                 <h4>Internet Explorer Users</h4>
                 <p>If you are not an Apache committer, click the Yes link and enter a <i>anonymous</i> for the username and leave the password empty</p>
                 <![endif]-->

             </div>
             <div class="modal-footer">
                 Do you have an Apache ID?
                 <a href="javascript:void(location.href='https://cms.apache.org/redirect?uri='+escape(location.href))" class="btn">Yes</a>
                 <a href="javascript:void(location.href='https://anonymous:@cms.apache.org/redirect?uri='+escape(location.href))" class="btn">No</a>
             </div>
         </div>
         <script src="./resources/js/bootstrap-modal.js"></script>

         <footer>
             <p>Copyright &copy; 1999-2016 The Apache Software Foundation, Licensed under the Apache License, Version 2.0.
                 Apache TomEE, TomEE, Apache, the Apache feather logo, and the Apache TomEE project logo are trademarks of The Apache Software Foundation.
                 All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p>
         </footer>

     </div> <!-- /container -->

     <!-- Javascript
     ================================================== -->
     <!-- Placed at the end of the document so the pages load faster -->
     <script src="./resources/js/bootstrap-dropdown.js"></script>

   </body>
 </html>
	<!DOCTYPE html>
	<html lang="en">
	<head>

	<meta charset="UTF-8">
	<title>Configuring PersistenceUnits in Tests</title>
	<meta name="description" content="Apache TomEE">
	<meta name="author" content="Apache TomEE">
	<meta name="google-translate-customization" content="f36a520c08f4c9-0a04e86a9c075ce9-g265f3196f697cf8f-10">
	<meta http-equiv="Pragma" content="no-cache">
	<meta http-equiv="Expires" content="0">
	<meta http-equiv="Cache-Control" content="no-store, no-cache, must-revalidate, max-age=0">

	<!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
	<!--[if lt IE 9]>
	<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
	<![endif]-->

	<!-- Le styles -->
	<link href="./resources/css/bootstrap.css" rel="stylesheet">
	<link href="./resources/css/prettify.css" rel="stylesheet">
	<!--link href="./resources/css/bootstrap-mods.css" rel="stylesheet"-->
	<link href="./resources/css/main.css" rel="stylesheet">
	<link href="./resources/font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">

	<script type="text/javascript">
	var t = encodeURIComponent(document.title.replace(/^\s+\|\s+$/g,""));
	var u = encodeURIComponent(""+document.URL);

	function fbshare () {
	window.open(
	"http://www.facebook.com/sharer/sharer.php?u="+u,
	'Share on Facebook',
	'width=640,height=426');
	};
	function gpshare () {
	window.open(
	"https://plus.google.com/share?url="+u,
	'Share on Google+',
	'width=584,height=385');
	};
	function twshare () {
	window.open(
	"https://twitter.com/intent/tweet?url="+u+"&text="+t,
	'Share on Twitter',
	'width=800,height=526');
	};
	function pinshare () {
	window.open("//www.pinterest.com/pin/create/button/?url="+u+"&media=http%3A%2F%2Ftomee.apache.org%2Fresources%2Fimages%2Ffeather-logo.png&description="+t,
	'Share on Pinterest',
	'width=800,height=526');
	};
	</script>

	<!-- Le fav and touch icons -->
	<link rel="shortcut icon" href="./favicon.ico">
	<link rel="apple-touch-icon" href="./resources/images/apple-touch-icon.png">
	<link rel="apple-touch-icon" sizes="72x72" href="./resources/images/apple-touch-icon-72x72.png">
	<link rel="apple-touch-icon" sizes="114x114" href="./resources/images/apple-touch-icon-114x114.png">

	<script src="./resources/js/prettify.js" type="text/javascript"></script>
	<script src="./resources/js/jquery-latest.js"></script>
	<script src="http://platform.twitter.com/widgets.js" type="text/javascript"></script>
	<script src="./resources/js/common.js"></script>
	<script src="./resources/js/prettyprint.js"></script>
	<!--script src="//assets.pinterest.com/js/pinit.js" type="text/javascript" async></script//-->

	<script type="text/javascript">

	var _gaq = _gaq \|\| [];
	_gaq.push(['_setAccount', 'UA-2717626-1']);
	_gaq.push(['_setDomainName', 'apache.org']);
	_gaq.push(['_trackPageview']);

	(function() {
	var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
	ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
	var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
	})();

	</script>
	</head>

	<body>

	<div class="topbar" data-dropdown="dropdown">
	<div class="fill">
	<div class="container">
	<a class="brand" href="./index.html">Apache TomEE</a>
	<ul class="nav">
	<li class="dropdown">
	<a class="dropdown-toggle" data-toggle="dropdown" href="#">
	Apache
	<b class="caret"></b>
	</a>
	<ul class="dropdown-menu">
	<!-- <li><a href="./misc/whoweare.html">Who we are?</a></li> -->
	<!-- <li><a href="./misc/heritage.html">Heritage</a></li> -->
	<li><a href="http://www.apache.org">Apache Home</a></li>
	<!-- <li><a href="./misc/resources.html">Resources</a></li> -->
	<li><a href="./misc/contact.html">Contact</a></li>
	<li><a href="./misc/legal.html">Legal</a></li>
	<li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
	<li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
	<li class="divider"/>
	<li><a href="http://www.apache.org/security">Security</a></li>
	</ul>
	</li>
	<li><a href="./index.html">Home</a></li>
	<li><a href="./downloads.html">Downloads</a></li>
	<li><a href="./documentation.html">Documentation</a></li>
	<li><a href="./examples-trunk/index.html">Examples</a></li>
	<li><a href="./support.html">Support</a></li>
	<li><a href="./contribute.html">Contribute</a></li>
	<li><a href="./security/index.html">Security</a></li>
	</ul>

	<!-- Google CSE Search Box Begins -->
	<FORM class="pull-right" id="searchbox_010475492895890475512:_t4iqjrgx90" action="http://www.google.com/cse">
	<INPUT type="hidden" name="cx" value="010475492895890475512:_t4iqjrgx90">
	<INPUT type="hidden" name="cof" value="FORID:0">
	<INPUT size="18" width="130" style="width:130px" name="q" type="text" placeholder="Search">
	</FORM>
	<!--<SCRIPT type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_010475492895890475512:_t4iqjrgx90"></SCRIPT>-->
	<!-- Google CSE Search Box Ends -->
	</div>
	</div>
	</div>

	<div class="container">


	<div class="page-header">
	<small><a href="./index.html">Home</a></small><br>
	<h1>Configuring PersistenceUnits in Tests

	<div style="float: right; position: relative; bottom: -10px; ">
	<a onclick="javascript:gpshare()" class="gp-share sprite" title="Share on Google+">share [gp]</a>
	<a onclick="javascript:fbshare()" class="fb-share sprite" title="Share on Facebook">share [fb]</a>
	<a onclick="javascript:twshare()" class="tw-share sprite" title="Share on Twitter">share [tw]</a>
	<a onclick="javascript:pinshare()" class="pin-share sprite" title="Share on Pinterest">share [pin]</a>
	<a data-toggle="modal" href="#edit" class="edit-page" title="Contribute to this Page">contribute</a>
	</div>
	</h1>
	</div>

	<p><a name="ConfiguringPersistenceUnitsinTests-Overridingthepersistence.xml"></a></p>

	<h1>Overriding the persistence.xml</h1>

	<p>The most common situation in EJB related testing by far is the need to
	alter your persistence.xml for a test environment.</p>

	<p><a name="ConfiguringPersistenceUnitsinTests-Overridingthe<jta-data-source>and<non-jta-data-source>"></a></p>

	<h2>Overriding the jta-data-source and non-jta-data-source</h2>

	<p>OpenEJB will automatically use the DataSources you have setup in your test
	environment, we're pretty good at guessing the right DataSources you intend
	even if the names don't match exactly -- or in some cases at all. If there
	is only one DataSource configured, it's very easy for us to guess the
	DataSource to use.</p>

	<p>This allows you to keep your persistence.xml configured for your production
	environment and helps eliminate the need for a "test" persistence.xml
	(though we do have that functionality). A log line will be printed saying
	if we had to adjust the DataSources of your persistence.xml.</p>

	<p><a name="ConfiguringPersistenceUnitsinTests-Overridingthepersistence-unit<properties>"></a></p>

	<h2>Overriding the persistence-unit properties</h2>

	<p>You can override any property in your test setup via either system
	properties or the initial context properties. The format is:</p>

	<p><code><unit-name>.<property>=<value></code></p>

	<p>So for example with the following persistence.xml:</p>

	<pre><code><persistence>
	<persistence-unit name="movie-unit">
	<provider>org.hibernate.ejb.HibernatePersistence</provider>
	<jta-data-source>movieDatabase</jta-data-source>
	<non-jta-data-source>movieDatabaseUnmanaged</non-jta-data-source>
	<properties>
	<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
	<property name="hibernate.max_fetch_depth" value="3"/>
	</properties>
	</persistence-unit>
	</persistence>
	</code></pre>

	<p>You can override and add persistence unit properties in your test case.
	There are currently no facilities for removing them (if you have a need for
	that let us know -- it hasn't really come up so far).</p>

	<pre><code>Properties p = new Properties();
	p.put(Context.INITIAL_CONTEXT_FACTORY,"org.apache.openejb.client.LocalInitialContextFactory");

	p.put("movie-unit.hibernate.hbm2ddl.auto", "update");
	p.put("movie-unit.hibernate.dialect", "org.hibernate.dialect.HSQLDialect");

	context = new InitialContext(p);
	</code></pre>

	<p>The overriding order is as follows: 1 = highest, 4 = lowest.</p>

	<ol>
	<li>InitialContext properties</li>
	<li>jndi.properties from the classpath</li>
	<li>System properties</li>
	<li>persistence.xml properties</li>
	</ol>

	<p>By default there are no overrides in 1-3, so #4 is the only source of
	information. </p>

	<p>In the above example there would be exactly three properties for the "movie-unit" persistence unit:</p>

	<ul>
	<li>hibernate.hbm2ddl.auto = update</li>
	<li>hibernate.max_fetch_depth = 3</li>
	<li>hibernate.dialect = org.hibernate.dialect.HSQLDialect</li>
	</ul>

	<p>These properties would be passed by OpenEJB directly to the persistence
	provider (in this case Hibernate). With one exception OpenEJB does not
	understand or modify these properties. Details on that one exception
	below.</p>

	<h3>Common mistakes</h3>

	<p>Note that you <strong>must</strong> use the <strong>unit name</strong> as the prefix. This will not work:</p>

	<pre><code> Properties p = new Properties();
	p.put(Context.INITIAL_CONTEXT_FACTORY,"org.apache.openejb.client.LocalInitialContextFactory");

	p.put("hibernate.hbm2ddl.auto", "update");
	p.put("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");

	context = new InitialContext(p);
	</code></pre>

	<p>Currently, only properties that start with the unit name are search and applied.</p>

	<h3>No need to specify a "transaction lookup" property</h3>

	<p>All vendors have such a property for getting a reference to the container's
	TransactionManager and nothing works if this is not set correctly to the
	OpenEJB specific class. To make the lives of users easier, OpenEJB will
	take the liberty of setting it for you.</p>

	<p>Here are the persistence provider classes we understand and the defaults we
	will set for you:</p>

	<h4>Provider org.hibernate.ejb.HibernatePersistence</h4>

	<p>When using this provider, the <em>hibernate.transaction.manager_lookup_class</em>
	will be automatically set by OpenEJB to
	<em>org.apache.openejb.hibernate.TransactionManagerLookup</em>. If the property
	is already set in the persistence unit it will be overwritten if it starts
	with the standard "org.hibernate.transaction." prefix. </p>

	<p>Custom lookup implementations will never be overwritten automatically.</p>

	<h4>Provider oracle.toplink.essentials.PersistenceProvider</h4>

	<p>Or <em>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</em>.</p>

	<p>When using this provider, the <em>toplink.target-server</em> will be automatically
	set by OpenEJB to <em>org.apache.openejb.toplink.JTATransactionController</em>.
	If the property is already set in the persistence unit it will be
	overwritten if it starts with the standard "oracle.toplink.transaction."
	prefix. </p>

	<p>Custom transaction controller implementations will never be overwritten automatically.</p>

	<h4>Provider org.eclipse.persistence.jpa.PersistenceProvider</h4>

	<p>Or <em>org.eclipse.persistence.jpa.osgi.PersistenceProvider</em>.</p>

	<p>When using this provider, the <em>eclipselink.target-server</em> will be
	automatically set by OpenEJB to
	<em>org.apache.openejb.eclipselink.JTATransactionController</em>. If the property
	is already set in the persistence unit it will be overwritten if it starts
	with the standard "org.eclipse.persistence.transaction." prefix. </p>

	<p>Custom transaction controller implementations will never be overwritten automatically.</p>

	<h4>Provider org.apache.openjpa.persistence.PersistenceProviderImpl</h4>

	<p>OpenJPA is capable of discovering the correct method for locating the
	TransactionManager without the need for users to specify the specific
	strategy. Therefore no specific "magic" is required.</p>




	<div id="edit" class="modal hide fade in" style="display: none; ">
	<div class="modal-header">
	<a class="close" data-dismiss="modal">x</a>

	<h3>Thank you for contributing to the documentation!</h3>
	</div>
	<div class="modal-body">
	<h4>Any help with the documentation is greatly appreciated.</h4>
	<p>All edits are reviewed before going live, so feel free to do much more than fix typos or links. If you see a page that could benefit from an entire rewrite, we'd be thrilled to review it. Don't be surprised if we like it so much we ask you for help with other pages :)</p>
	<small>NOTICE: unless indicated otherwise on the pages in question, all editable content available from apache.org is presumed to be licensed under the Apache License (AL) version 2.0 and hence all submissions to apache.org treated as formal Contributions under the license terms.</small>
	<!--[if gt IE 6]>
	<h4>Internet Explorer Users</h4>
	<p>If you are not an Apache committer, click the Yes link and enter a <i>anonymous</i> for the username and leave the password empty</p>
	<![endif]-->

	</div>
	<div class="modal-footer">
	Do you have an Apache ID?
	<a href="javascript:void(location.href='https://cms.apache.org/redirect?uri='+escape(location.href))" class="btn">Yes</a>
	<a href="javascript:void(location.href='https://anonymous:@cms.apache.org/redirect?uri='+escape(location.href))" class="btn">No</a>
	</div>
	</div>
	<script src="./resources/js/bootstrap-modal.js"></script>

	<footer>
	<p>Copyright © 1999-2016 The Apache Software Foundation, Licensed under the Apache License, Version 2.0.
	Apache TomEE, TomEE, Apache, the Apache feather logo, and the Apache TomEE project logo are trademarks of The Apache Software Foundation.
	All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p>
	</footer>

	</div> <!-- /container -->

	<!-- Javascript
	================================================== -->
	<!-- Placed at the end of the document so the pages load faster -->
	<script src="./resources/js/bootstrap-dropdown.js"></script>

	</body>
	</html>