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| <h2 title="Annotation Type GeneratedValue" class="title">Annotation Type GeneratedValue</h2> |
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| <pre>@Target(value={METHOD,FIELD}) |
| @Retention(value=RUNTIME) |
| public @interface <span class="memberNameLabel">GeneratedValue</span></pre> |
| <div class="block">Provides for the specification of generation strategies for the |
| values of primary keys. |
| |
| <p> The <code>GeneratedValue</code> annotation |
| may be applied to a primary key property or field of an entity or |
| mapped superclass in conjunction with the <a href="../../javax/persistence/Id.html" title="annotation in javax.persistence"><code>Id</code></a> annotation. |
| The use of the <code>GeneratedValue</code> annotation is only |
| required to be supported for simple primary keys. Use of the |
| <code>GeneratedValue</code> annotation is not supported for derived |
| primary keys. |
| |
| <pre> |
| |
| Example 1: |
| |
| @Id |
| @GeneratedValue(strategy=SEQUENCE, generator="CUST_SEQ") |
| @Column(name="CUST_ID") |
| public Long getId() { return id; } |
| |
| Example 2: |
| |
| @Id |
| @GeneratedValue(strategy=TABLE, generator="CUST_GEN") |
| @Column(name="CUST_ID") |
| Long id; |
| </pre></div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.0</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../javax/persistence/Id.html" title="annotation in javax.persistence"><code>Id</code></a>, |
| <a href="../../javax/persistence/TableGenerator.html" title="annotation in javax.persistence"><code>TableGenerator</code></a>, |
| <a href="../../javax/persistence/SequenceGenerator.html" title="annotation in javax.persistence"><code>SequenceGenerator</code></a></dd> |
| <dt><span class="simpleTagLabel">Examples (en):</span></dt> |
| <dd><a href="../../../../../tomee-8.0/examples/xa-datasource.html">xa-datasource</a>, <a href="../../../../../tomee-8.0/examples/webservice-inheritance.html">webservice-inheritance</a>, <a href="../../../../../tomee-8.0/examples/troubleshooting.html">troubleshooting</a>, <a href="../../../../../tomee-8.0/examples/transaction-rollback.html">transaction-rollback</a>, <a href="../../../../../tomee-8.0/examples/tomee-jersey-eclipselink.html">tomee-jersey-eclipselink</a>, <a href="../../../../../tomee-8.0/examples/testing-transactions-bmt.html">testing-transactions-bmt</a>, <a href="../../../../../tomee-8.0/examples/spring-data-proxy.html">spring-data-proxy</a>, <a href="../../../../../tomee-8.0/examples/spring-data-proxy-meta.html">spring-data-proxy-meta</a>, <a href="../../../../../tomee-8.0/examples/rest-on-ejb.html">rest-on-ejb</a>, <a href="../../../../../tomee-8.0/examples/rest-example.html">rest-example</a>, <a href="../../../../../tomee-8.0/examples/polling-parent.html">polling-parent</a>, <a href="../../../../../tomee-8.0/examples/persistence-fragment.html">persistence-fragment</a>, <a href="../../../../../tomee-8.0/examples/myfaces-codi-demo.html">myfaces-codi-demo</a>, <a href="../../../../../tomee-8.0/examples/mvc-cxf.html">mvc-cxf</a>, <a href="../../../../../tomee-8.0/examples/mvc-cxf-hibernate.html">mvc-cxf-hibernate</a>, <a href="../../../../../tomee-8.0/examples/multi-jpa-provider-testing.html">multi-jpa-provider-testing</a>, <a href="../../../../../tomee-8.0/examples/moviefun.html">moviefun</a>, <a href="../../../../../tomee-8.0/examples/moviefun-rest.html">moviefun-rest</a>, <a href="../../../../../tomee-8.0/examples/jpa-hibernate.html">jpa-hibernate</a>, <a href="../../../../../tomee-8.0/examples/jpa-hibernate-arquillian.html">jpa-hibernate-arquillian</a>, <a href="../../../../../tomee-8.0/examples/jpa-enumerated.html">jpa-enumerated</a>, <a href="../../../../../tomee-8.0/examples/jpa-eclipselink.html">jpa-eclipselink</a>, <a href="../../../../../tomee-8.0/examples/injection-of-entitymanager.html">injection-of-entitymanager</a>, <a href="../../../../../tomee-8.0/examples/groovy-jpa.html">groovy-jpa</a>, <a href="../../../../../tomee-8.0/examples/ejb-examples.html">ejb-examples</a>, <a href="../../../../../tomee-8.0/examples/dynamic-dao-implementation.html">dynamic-dao-implementation</a>, <a href="../../../../../tomee-8.0/examples/deltaspike-fullstack.html">deltaspike-fullstack</a></dd> |
| <dt><span class="simpleTagLabel">Examples (es):</span></dt> |
| <dd><a href="../../../../../tomee-8.0/es/examples/xa-datasource.html">xa-datasource</a>, <a href="../../../../../tomee-8.0/es/examples/polling-parent.html">polling-parent</a>, <a href="../../../../../tomee-8.0/es/examples/myfaces-codi-demo.html">myfaces-codi-demo</a>, <a href="../../../../../tomee-8.0/es/examples/jpa-hibernate.html">jpa-hibernate</a>, <a href="../../../../../tomee-8.0/es/examples/injection-of-entitymanager.html">injection-of-entitymanager</a>, <a href="../../../../../tomee-8.0/es/examples/groovy-jpa.html">groovy-jpa</a></dd> |
| <dt><span class="simpleTagLabel">Examples (pt):</span></dt> |
| <dd><a href="../../../../../tomee-8.0/pt/examples/xa-datasource.html">xa-datasource</a>, <a href="../../../../../tomee-8.0/pt/examples/tomee-jersey-eclipselink.html">tomee-jersey-eclipselink</a>, <a href="../../../../../tomee-8.0/pt/examples/spring-data-proxy.html">spring-data-proxy</a>, <a href="../../../../../tomee-8.0/pt/examples/spring-data-proxy-meta.html">spring-data-proxy-meta</a>, <a href="../../../../../tomee-8.0/pt/examples/polling-parent.html">polling-parent</a>, <a href="../../../../../tomee-8.0/pt/examples/persistence-fragment.html">persistence-fragment</a>, <a href="../../../../../tomee-8.0/pt/examples/myfaces-codi-demo.html">myfaces-codi-demo</a>, <a href="../../../../../tomee-8.0/pt/examples/mvc-cxf-hibernate.html">mvc-cxf-hibernate</a>, <a href="../../../../../tomee-8.0/pt/examples/multi-jpa-provider-testing.html">multi-jpa-provider-testing</a>, <a href="../../../../../tomee-8.0/pt/examples/moviefun-rest.html">moviefun-rest</a>, <a href="../../../../../tomee-8.0/pt/examples/jpa-hibernate.html">jpa-hibernate</a>, <a href="../../../../../tomee-8.0/pt/examples/jpa-enumerated.html">jpa-enumerated</a>, <a href="../../../../../tomee-8.0/pt/examples/jpa-eclipselink.html">jpa-eclipselink</a>, <a href="../../../../../tomee-8.0/pt/examples/injection-of-entitymanager.html">injection-of-entitymanager</a>, <a href="../../../../../tomee-8.0/pt/examples/groovy-jpa.html">groovy-jpa</a>, <a href="../../../../../tomee-8.0/pt/examples/dynamic-dao-implementation.html">dynamic-dao-implementation</a>, <a href="../../../../../tomee-8.0/pt/examples/deltaspike-fullstack.html">deltaspike-fullstack</a></dd> |
| </dl> |
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| <h3>Optional Element Summary</h3> |
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| <caption><span>Optional Elements</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Optional Element and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/persistence/GeneratedValue.html#generator--">generator</a></span></code> |
| <div class="block">(Optional) The name of the primary key generator |
| to use as specified in the <a href="../../javax/persistence/SequenceGenerator.html" title="annotation in javax.persistence"><code>SequenceGenerator</code></a> |
| or <a href="../../javax/persistence/TableGenerator.html" title="annotation in javax.persistence"><code>TableGenerator</code></a> annotation.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../javax/persistence/GenerationType.html" title="enum in javax.persistence">GenerationType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../javax/persistence/GeneratedValue.html#strategy--">strategy</a></span></code> |
| <div class="block">(Optional) The primary key generation strategy |
| that the persistence provider must use to |
| generate the annotated entity primary key.</div> |
| </td> |
| </tr> |
| </table> |
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| <a name="strategy--"> |
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| <h4>strategy</h4> |
| <pre>public abstract <a href="../../javax/persistence/GenerationType.html" title="enum in javax.persistence">GenerationType</a> strategy</pre> |
| <div class="block">(Optional) The primary key generation strategy |
| that the persistence provider must use to |
| generate the annotated entity primary key.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>javax.persistence.GenerationType.AUTO</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <h4>generator</h4> |
| <pre>public abstract java.lang.String generator</pre> |
| <div class="block">(Optional) The name of the primary key generator |
| to use as specified in the <a href="../../javax/persistence/SequenceGenerator.html" title="annotation in javax.persistence"><code>SequenceGenerator</code></a> |
| or <a href="../../javax/persistence/TableGenerator.html" title="annotation in javax.persistence"><code>TableGenerator</code></a> annotation. |
| <p> Defaults to the id generator supplied by persistence provider.</div> |
| <dl> |
| <dt>Default:</dt> |
| <dd>""</dd> |
| </dl> |
| </li> |
| </ul> |
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