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<title>Advanced</title>
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<meta name="date" content="2013-04-05T12:21:40Z" />
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<meta name="doctitle" content="Advanced" />
<meta name="relnum" content="Release 3.3" />
<meta name="partnum" content="Release 3.3" />
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<body>
<p><a id="CACJEEDE" name="CACJEEDE"></a></p>
<div class="sect3"><!-- infolevel="all" infotype="General" -->
<h1>Advanced</h1>
<p><a id="sthref523" name="sthref523"></a><a id="sthref524" name="sthref524"></a><a id="sthref525" name="sthref525"></a><a id="sthref526" name="sthref526"></a><a id="sthref527" name="sthref527"></a><a id="sthref528" name="sthref528"></a><a id="sthref529" name="sthref529"></a><a id="sthref530" name="sthref530"></a><a id="sthref531" name="sthref531"></a>Use the <span class="gui-object-title">Advanced</span> area in the <span class="gui-object-title">JPA Details</span> view to configure additional settings for an entity.</p>
<div class="inftblhruleinformalwide">
<table class="HRuleInformalWide" title="JPA Details view, Advanced page" summary="JPA Details view, Advanced page" dir="ltr" border="1" width="100%" frame="hsides" rules="rows" cellpadding="3" cellspacing="0">
<col width="16%" />
<col width="*" />
<col width="17%" />
<col width="25%" />
<thead>
<tr align="left" valign="top">
<th align="left" valign="bottom" id="r1c1-t33">Property</th>
<th align="left" valign="bottom" id="r1c2-t33">Description</th>
<th align="left" valign="bottom" id="r1c3-t33">Default</th>
<th align="left" valign="bottom" id="r1c4-t33">Available for Entity&nbsp;Type</th>
</tr>
</thead>
<tbody>
<tr align="left" valign="top">
<td align="left" id="r2c1-t33" headers="r1c1-t33">
<p>Read-only</p>
</td>
<td align="left" headers="r2c1-t33 r1c2-t33">
<p>Specifies if a class is read-only.</p>
</td>
<td align="left" headers="r2c1-t33 r1c3-t33">
<p>False</p>
</td>
<td align="left" headers="r2c1-t33 r1c4-t33">
<p><a href="tasks004.htm#BABGBIEE">Entity</a> and <a href="tasks006.htm#BABDAGCI">Mapped superclass</a></p>
</td>
</tr>
<tr align="left" valign="top">
<td align="left" id="r3c1-t33" headers="r1c1-t33">
<p>Customizer class</p>
</td>
<td align="left" headers="r3c1-t33 r1c2-t33">
<p>Specifies a class that implements <code>DescriptorCustomizer</code> and is to run against an entity's class descriptor after all metadata processing has been completed.</p>
</td>
<td align="left" headers="r3c1-t33 r1c3-t33">
<p>True</p>
</td>
<td align="left" headers="r3c1-t33 r1c4-t33">
<p><a href="tasks004.htm#BABGBIEE">Entity</a>, <a href="tasks005.htm#BABFEICE">Embeddable</a>, and <a href="tasks006.htm#BABDAGCI">Mapped superclass</a></p>
</td>
</tr>
<tr align="left" valign="top">
<td align="left" id="r4c1-t33" headers="r1c1-t33">
<p>Change tracking</p>
</td>
<td align="left" headers="r4c1-t33 r1c2-t33">
<p>Specifies the <code>ObjectChangePolicy</code> to use:</p>
<ul>
<li>
<p><span class="bold">Attribute</span> &ndash; Objects with changed attributes will be processed in the commit process to include any changes in the results of the commit. Unchanged objects will be ignored.</p>
</li>
<li>
<p><span class="bold">Object</span> &ndash; Changed objects will be processed in the commit process to include any changes in the results of the commit. Unchanged objects will be ignored.</p>
</li>
<li>
<p><span class="bold">Deferred</span> &ndash; Defers all change detection to the UnitOfWork's change detection process.</p>
</li>
<li>
<p><span class="bold">Auto</span> &ndash; Does not set any change tracking policy; change tracking will be determined at runtime.</p>
</li>
</ul>
</td>
<td align="left" headers="r4c1-t33 r1c3-t33">
<p>Auto</p>
</td>
<td align="left" headers="r4c1-t33 r1c4-t33">
<p><a href="tasks004.htm#BABGBIEE">Entity</a>, <a href="tasks005.htm#BABFEICE">Embeddable</a>, and <a href="tasks006.htm#BABDAGCI">Mapped superclass</a></p>
</td>
</tr>
</tbody>
</table>
<br /></div>
<!-- class="inftblhruleinformalwide" -->
<a id="sthref532" name="sthref532"></a>
<p class="subhead2">Related reference</p>
<ul>
<li>
<p><a href="ref_persistence_prop_view.htm#BABFAEBB">JPA Details view (for entities)</a></p>
</li>
<li>
<p>"Read Only" and "ChangeTracking" in <span class="italic">Java Persistence API (JPA) Extensions Reference for EclipseLink</span><br />
<code><a href="http://eclipse.org/eclipselink/documentation/2.4/jpa/">http://eclipse.org/eclipselink/documentation/2.4/jpa/</a></code></p>
</li>
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