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   <title>2.&nbsp; Non-EE Use</title><link rel="stylesheet" href="css/docbook.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"><link rel="start" href="manual.html" title="Apache OpenJPA User's Guide"><link rel="up" href="jpa_overview_persistence.html" title="Chapter&nbsp;6.&nbsp; Persistence"><link rel="prev" href="jpa_overview_persistence.html" title="Chapter&nbsp;6.&nbsp; Persistence"><link rel="next" href="jpa_overview_emfactory.html" title="Chapter&nbsp;7.&nbsp; EntityManagerFactory"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">2.&nbsp;
            Non-EE Use
        </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="jpa_overview_persistence.html">Prev</a>&nbsp;</td><th width="60%" align="center">Chapter&nbsp;6.&nbsp;
        Persistence
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            Non-EE Use
        </h2></div></div></div><p>
The example below demonstrates the <code class="classname">Persistence</code> class in
action. You will typically execute code like this on application startup, then
cache the resulting factory for future use. This bootstrapping code is only
necessary in non-EE environments; in an EE environment <code class="classname">
EntityManagerFactories</code> are typically injected.
        </p><div class="example"><a name="jpa_overview_persistence_getemfactory"></a><p class="title"><b>Example&nbsp;6.2.&nbsp;
                Obtaining an EntityManagerFactory
            </b></p><div class="example-contents"><pre class="programlisting">
// if your persistence.xml file does not contain all settings already, you
// can add vendor settings to a map
Properties props = new Properties();
...

// create the factory defined by the "openjpa" entity-manager entry
EntityManagerFactory emf = Persistence.createEntityManagerFactory("openjpa", props);
</pre></div></div><br class="example-break"></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="jpa_overview_persistence.html">Prev</a>&nbsp;</td><td width="20%" align="center"><a accesskey="u" href="jpa_overview_persistence.html">Up</a></td><td width="40%" align="right">&nbsp;<a accesskey="n" href="jpa_overview_emfactory.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter&nbsp;6.&nbsp;
        Persistence
    &nbsp;</td><td width="20%" align="center"><a accesskey="h" href="manual.html">Home</a></td><td width="40%" align="right" valign="top">&nbsp;Chapter&nbsp;7.&nbsp;
        EntityManagerFactory
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