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| <title>Embedded mapping</title> |
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| <div class="sect2"><!-- infolevel="all" infotype="General" --> |
| <h1>Embedded mapping</h1> |
| <p><a id="sthref216" name="sthref216"></a><a id="sthref217" name="sthref217"></a><a id="sthref218" name="sthref218"></a><a id="sthref219" name="sthref219"></a>Use an <span class="bold">Embedded Mapping</span> to specify a persistent field or property of an entity whose value is an instance of an embeddable class.</p> |
| <ol> |
| <li> |
| <p>In the <a href="ref_persistence_outline.htm#BABEGGFE">JPA Structure view</a>, right-click the field to map.</p> |
| </li> |
| <li> |
| <p>Select <span class="bold">Map as > Embedded</span>. The <a href="ref_persistence_map_view.htm#BABIFBAF">JPA Details view (for attributes)</a> displays the properties for the selected field.</p> |
| <div class="figure"><a id="sthref220" name="sthref220"></a> |
| <p class="titleinfigure">JPA Details, Embedded mapping</p> |
| <img src="img/jpa_details_embedded.png" alt="PA Details, Element collection mapping" title="PA Details, Element collection mapping" /><br /></div> |
| <!-- class="figure" --></li> |
| <li> |
| <p>Complete each field in the <a href="reference035.htm#CACBJBFD">Embedded Mapping</a> area.</p> |
| </li> |
| </ol> |
| <p>Eclipse adds the following annotations to the field:</p> |
| <pre xml:space="preserve" class="oac_no_warn"> |
| @Embedded |
| @AttributeOverride( |
| column=@Column( |
| table="<span class="italic"><COLUMN_TABLE></span>", |
| name = "<span class="italic"><COLUMN_NAME></span>" |
| ) |
| ) |
| |
| </pre> |
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| <p class="subhead2">Related tasks</p> |
| <ul> |
| <li> |
| <p><a href="task_mapping.htm#BABDGBIJ">Mapping an entity</a></p> |
| </li> |
| </ul> |
| <a id="sthref222" name="sthref222"></a> |
| <p class="subhead2">Related references</p> |
| <ul> |
| <li> |
| <p><a href="ref_persistence_outline.htm#BABEGGFE">JPA Structure view</a></p> |
| </li> |
| <li> |
| <p><a href="ref_persistence_map_view.htm#BABIFBAF">JPA Details view (for attributes)</a></p> |
| </li> |
| </ul> |
| <a id="sthref223" name="sthref223"></a> |
| <p class="subhead2">Related concepts</p> |
| <ul> |
| <li> |
| <p><a href="concept_mapping.htm#BABBDJFI">Understanding OR mappings</a></p> |
| </li> |
| <li> |
| <p><a href="concepts001.htm#BABBGFJG">Understanding Java Persistence API</a></p> |
| </li> |
| </ul> |
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