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| <div class="refsect1"> |
| <h2 class="refsect1"><font face="arial, helvetica, sans-serif" color="#330099">@Customizer</font></h2> |
| <p>Use <code>@Customizer</code> to specify a class that implements <code>org.eclipse.persistence.config.DescriptorCustomizer</code> and is to run against an entity's class descriptor after all metadata processing has been completed.</p> |
| <a id="sthref99" name="sthref99"></a> |
| <p><strong><br /><span class="refsubsect">Annotation Elements</span></strong></p> |
| <p><a href="#BABCJCHB">Table 2-18</a> describes this annotation's elements.</p> |
| <div class="tblhruleformalwide"><a id="TLJPA392" name="TLJPA392"></a><a id="sthref100" name="sthref100"></a><a id="BABCJCHB" name="BABCJCHB"></a> |
| <p><strong><em><font face="arial, helvetica, sans-serif">Table 2-18 @Customizer Annotation Elements</font></em></strong></p> |
| <table class="HRuleFormalWide" title="@Customizer Annotation Elements" summary="This table describes this annotation’s elements." dir="ltr" border="1" width="100%" frame="hsides" rules="rows" cellpadding="3" cellspacing="0"> |
| <col width="23%" /> |
| <col width="*" /> |
| <col width="20%" /> |
| <thead> |
| <tr align="left" valign="top"> |
| <th align="left" valign="bottom" id="r1c1-t24"><font face="Arial, Helvetica, sans-serif"><strong>Annotation Element</strong></font></th> |
| <th align="left" valign="bottom" id="r1c2-t24"><font face="Arial, Helvetica, sans-serif"><strong>Description</strong></font></th> |
| <th align="left" valign="bottom" id="r1c3-t24"><font face="Arial, Helvetica, sans-serif"><strong>Default</strong></font></th> |
| </tr> |
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| <tbody> |
| <tr align="left" valign="top"> |
| <td align="left" id="r2c1-t24" headers="r1c1-t24"> |
| <p><code>java.lang.Class</code></p> |
| </td> |
| <td align="left" headers="r2c1-t24 r1c2-t24"> |
| <p>(Required) The name of the descriptor customizer to apply to the entity's descriptor.</p> |
| </td> |
| <td align="left" headers="r2c1-t24 r1c3-t24"><br /></td> |
| </tr> |
| </tbody> |
| </table> |
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| <!-- class="tblhruleformalwide" --> |
| <a id="sthref101" name="sthref101"></a> |
| <p><strong><br /><span class="refsubsect">Usage</span></strong></p> |
| <p>Use this annotation to customize or extend the mapping metadata through the EclipseLink native API. With <code>@Customizer</code>, you can access additional EclipseLink functionality and configurations.</p> |
| <p>You can specify <code>@Customizer</code> on an Entity, MappedSuperclass, or Embeddable class.</p> |
| <div align="center"> |
| <div class="inftblnote"><br /> |
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| <p class="note"><img src="../../../dcommon/images/note_icon.png" width="16" height="16" alt="Note" style="vertical-align:middle;padding-right:5px;" />Note:</p> |
| <p>A <code>@Customizer</code> is not inherited from its parent classes.</p> |
| </td> |
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| </table> |
| <br /></div> |
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| <a id="sthref102" name="sthref102"></a> |
| <p><strong><br /><span class="refsubsect">Examples</span></strong></p> |
| <p><a href="#BABBFAGB">Example 2-36</a> show how to use the <code>@Customizer</code> annotation with the following <code>DescriptorCustomer</code>:</p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| public class <strong>MyCustomizer</strong> implements DescriptorCustomizer { |
| public void customize(ClassDescriptor descriptor) { |
| DirectToFieldMapping genderMapping = (DirectToFieldMapping)descriptor.getMappingForAttributeName("gender"); |
| ObjectTypeConverter converter = new ObjectTypeConverter(); |
| convert.addConversionValue("M", Gender.MALE); |
| convert.addConversionValue("F", Gender.FEMALE); |
| genderMapping.setConverter(converter); |
| } |
| } |
| </pre> |
| <div class="example"><a id="BABBFAGB" name="BABBFAGB"></a><a id="TLJPA393" name="TLJPA393"></a> |
| <p><strong><em><font face="arial, helvetica, sans-serif">Example 2-36 Using @Customizer Annotation</font></em></strong></p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| @Entity |
| @Table(name="EMPLOYEE") |
| <strong>@Customizer(mypackage.MyCustomizer.class)</strong> |
| public class Employee implements Serializable { |
| ... |
| } |
| </pre></div> |
| <!-- class="example" --> |
| <p><a href="#BABDJIFC">Example 2-37</a> show how to use the <code><customizer></code> element in the <code>eclipselink-orm.xml</code> file.</p> |
| <div class="example"><a id="BABDJIFC" name="BABDJIFC"></a><a id="TLJPA394" name="TLJPA394"></a> |
| <p><strong><em><font face="arial, helvetica, sans-serif">Example 2-37 Using <customizer> XML</font></em></strong></p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| <entity class="Employee"> |
| <table name="EMPLOYEE"/> |
| <strong><customizer class="mypackage.MyCustomizer"/></strong> |
| ... |
| </entity> |
| </pre></div> |
| <!-- class="example" --> |
| <a id="sthref103" name="sthref103"></a> |
| <p><strong><br /><span class="refsubsect">See Also</span></strong></p> |
| <p>For more information, see:</p> |
| <ul> |
| <li> |
| <p><a href="p_descriptor_customizer.htm#CCHIEAIA">"descriptor.customizer"</a></p> |
| </li> |
| <li> |
| <p>"Binding JPA Entities to XML" in <em>Solutions Guide for EclispeLink</em></p> |
| </li> |
| <li> |
| <p>EclipseLink Examples<br /> |
| <code><a href="http://wiki.eclipse.org/EclipseLink/Examples/JPA/MappingSelectionCriteria">http://wiki.eclipse.org/EclipseLink/Examples/JPA/MappingSelectionCriteria</a></code></p> |
| </li> |
| <li> |
| <p>"Customizers"<br /> |
| <code><a href="http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Advanced_JPA_Development/Customizers">http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Advanced_JPA_Development/Customizers</a></code></p> |
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