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<title>Converting a Java project to a JPA project</title>
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<p class="betadraftsubtitle">Beta Draft: 2013-01-03</p>
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<div class="sect1"><!-- infolevel="all" infotype="General" -->
<h1>Converting a Java project to a JPA project</h1>
<p><a id="sthref72" name="sthref72"></a><a id="sthref73" name="sthref73"></a><a id="sthref74" name="sthref74"></a>Use this procedure to convert an existing Java project to a JPA project.</p>
<ol>
<li>
<p>From the Navigator or Project explorer, right-click the Java project and then select <span class="bold">Configure &gt; Convert to JPA Project.</span> The Project Facets page of the Modify Faceted Project wizard appears.</p>
<div class="figure"><a id="sthref75" name="sthref75"></a>
<p class="titleinfigure">Modify Faceted Project Page</p>
<img src="img/modify_faceted_project.png" alt="" title="" /><br /></div>
<!-- class="figure" --></li>
<li>
<p>Change the <span class="bold">Configuration</span> to <span class="bold">Default JPA Configuration</span>.</p>
</li>
<li>
<p>Click <span class="bold">Next</span>. The Java source page appears (see <a href="task_create_new_project.htm#CIHIFEGJ">Figure: The Java Source Page</a>).</p>
</li>
<li>
<p>Click <span class="bold">Add Folder</span> to add existing Java source files to the project and click <span class="bold">Next</span>. The <a href="ref_jpa_facet.htm#CACIFDIF">JPA Facet page</a> appears.</p>
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<p class="titleinfigure">JPA Facet Page</p>
<img src="img/new_jpa_facet_task.png" alt="" title="" /><br /></div>
<!-- class="figure" --></li>
<li>
<p>Complete the fields on the <a href="ref_jpa_facet.htm#CACIFDIF">JPA Facet page</a> to specify your vender-specific platform, JPA implementation library, and database connection.</p>
<p>Click <span class="bold">Manage libraries</span> to create or update your JPA user libraries. Click <span class="bold">Download libraries</span> to obtain additional JPA implementation libraries.</p>
<p>If Dali derives the incorrect schema, select <span class="bold">Override the Default Schema for Connection</span>. Using this option, you can select a development time schema for defaults and validation.</p>
<p>If you clear the <span class="bold">Create mapping file (orm.xml)</span> option (which is selected by default), you can later add a mapping file to the project using the <a href="reference007.htm#CIAIJCCE">Create ORM Mapping File wizard</a>.</p>
</li>
<li>
<p>Click <span class="bold">Finish</span>.</p>
</li>
</ol>
<p>The Dali OR Mapping Tool adds the JPA implementation libraries to your project and creates the necessary <code>orm.xml</code> and <code>perisistence.xml</code> files.</p>
<a id="sthref77" name="sthref77"></a>
<p class="subhead2">Related reference</p>
<ul>
<li>
<p><a href="ref_new_jpa_project_wizard.htm#CACBJGBG">Create New JPA Project wizard</a></p>
</li>
<li>
<p><a href="ref_persistence_perspective.htm#BABIFBDB">JPA Development perspective</a></p>
</li>
<li>
<p><a href="reference007.htm#CIAIJCCE">Create ORM Mapping File wizard</a></p>
</li>
</ul>
<a id="sthref78" name="sthref78"></a>
<p class="subhead2">Related tasks</p>
<ul>
<li>
<p><a href="task_manage_persistence.htm#CIHDAJID">Managing the persistence.xml file</a></p>
</li>
<li>
<p><a href="task_add_persistence.htm#BABHICAI">Adding persistence to a class</a></p>
</li>
<li>
<p><a href="task_create_new_project.htm#CIHHEJCJ">Creating a new JPA project</a></p>
</li>
</ul>
<a id="sthref79" name="sthref79"></a>
<p class="subhead2">Related concepts</p>
<ul>
<li>
<p><a href="concept_persistence.htm#BABCAHIC">Understanding Java persistence</a></p>
</li>
<li>
<p><a href="concepts002.htm#CHDHAGIH">The persistence.xml file</a></p>
</li>
</ul>
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