svn commit: r901542 [7/8] - in /websites/production/camel/content: ./ cache/

[bu...@apache.org]

Modified: websites/production/camel/content/jpa.html
==============================================================================
--- websites/production/camel/content/jpa.html (original)
+++ websites/production/camel/content/jpa.html Fri Mar 14 10:20:20 2014
@@ -97,7 +97,7 @@
 </div></div><h3 id="JPA-Sendingtotheendpoint">Sending to the endpoint</h3><p>You can store a Java entity bean in a database by sending it to a JPA producer endpoint. The body of the <em>In</em> message is assumed to be an entity bean (that is, a POJO with an <a shape="rect" class="external-link" href="http://java.sun.com/javaee/5/docs/api/javax/persistence/Entity.html" rel="nofollow">@Entity</a> annotation on it) or a collection or array of entity beans.</p><p>If the body does not contain one of the previous listed types, put a <a shape="rect" href="message-translator.html">Message Translator</a> in front of the endpoint to perform the necessary conversion first.</p><h3 id="JPA-Consumingfromtheendpoint">Consuming from the endpoint</h3><p>Consuming messages from a JPA consumer endpoint removes (or updates) entity beans in the database. This allows you to use a database table as a logical queue: consumers take messages from the queue and then delete/update them to logically remove the
 m from the queue.</p><p>If you do not wish to delete the entity bean when it has been processed (and when routing is done), you can specify <code>consumeDelete=false</code> on the URI. This will result in the entity being processed each poll.</p><p>If you would rather perform some update on the entity to mark it as processed (such as to exclude it from a future query) then you can annotate a method with <a shape="rect" class="external-link" href="http://camel.apache.org/maven/current/camel-jpa/apidocs/org/apache/camel/component/jpa/Consumed.html">@Consumed</a> which will be invoked on your entity bean when the entity bean when it has been processed (and when routing is done).</p><p>From <strong>Camel 2.13</strong> onwards you can use <a shape="rect" class="external-link" href="http://camel.apache.org/maven/current/camel-jpa/apidocs/org/apache/camel/component/jpa/PreConsumed.html">@PreConsumed</a> which will be invoked on your entity bean before it has been processed (before routing)
 .</p><h3 id="JPA-URIformat">URI format</h3><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
 <script class="theme: Default; brush: java; gutter: false" type="syntaxhighlighter"><![CDATA[jpa:entityClassName[?options]
 ]]></script>
-</div></div><p>For sending to the endpoint, the <em>entityClassName</em> is optional. If specified, it helps the <a shape="rect" href="type-converter.html">Type Converter</a> to ensure the body is of the correct type.</p><p>For consuming, the <em>entityClassName</em> is mandatory.</p><p>You can append query options to the URI in the following format, <code>?option=value&amp;option=value&amp;...</code></p><h3 id="JPA-Options">Options</h3><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p> Name </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Default Value </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Description </p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>entityType</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <em>entityClassName</em> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> Overrides the <em>entityClassName</em> from the URI. </p></td>
 </tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>persistenceUnit</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>camel</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> The JPA persistence unit used by default. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumeDelete</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> If <code>true</code>, the entity is deleted after it is consumed; if <code>false</code>, the entity is not deleted. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumeLockEntity</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Specifies whether or not to set an exclusive lock
  on each entity bean while processing the results from polling. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>flushOnSend</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA producer only:</strong> Flushes the <a shape="rect" class="external-link" href="http://java.sun.com/javaee/5/docs/api/javax/persistence/EntityManager.html" rel="nofollow">EntityManager</a> after the entity bean has been persisted. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>maximumResults</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>-1</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>  <strong>JPA consumer only:</strong> Set the maximum number of results to retrieve on the <a shape="rect" class="external-link" href="http://java.sun.com/javaee/5/docs/api/javax/persistence/Query.html" rel="nofoll
 ow">Query</a>. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>transactionManager</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>null</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> This option is <a shape="rect" href="registry.html" title="Registry">Registry</a> based which requires the <code>#</code> notation so that the given <code>transactionManager</code> being specified can be looked up properly, e.g. <code>transactionManager=#myTransactionManager</code>. It specifies the transaction manager to use. If none provided, Camel will use a <code>JpaTransactionManager</code> by default. Can be used to set a JTA transaction manager (for integration with an EJB container). </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.delay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>500</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> 
 <strong>JPA consumer only:</strong> Delay in milliseconds between each poll. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.initialDelay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>1000</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Milliseconds before polling starts. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.useFixedDelay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Set to <code>true</code> to use fixed delay between polls, otherwise fixed rate is used. See <a shape="rect" class="external-link" href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ScheduledExecutorService.html" rel="nofollow">ScheduledExecutorService</a> in JDK for details. </p></td></tr><tr><td
  colspan="1" rowspan="1" class="confluenceTd"><p> <code>maxMessagesPerPoll</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>0</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> An integer value to define the maximum number of messages to gather per poll. By default, no maximum is set. Can be used to avoid polling many thousands of messages when starting up the server. Set a value of 0 or negative to disable. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.query</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a custom query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.namedQuery</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" ro
 wspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a named query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.nativeQuery</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a custom native query when consuming data. You may want to use the option <code>consumer.resultClass</code> also when using native queries. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.parameters</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.12: JPA consumer only:</strong> This option is <a shape="rect" href="registry.html" title="Registry">Registry</a> based which requires the <code>#</code> notation. This key/value mapping is used for building the query 
 parameters. It's is expected to be of the generic type <code>java.util.Map&lt;String, Object&gt;</code> where the keys are the named parameters of a given JPA query and the values are their corresponding effective values you want to select for. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.resultClass</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.7: JPA consumer only:</strong> Defines the type of the returned payload (we will call <code>entityManager.createNativeQuery(nativeQuery, resultClass)</code> instead of <code>entityManager.createNativeQuery(nativeQuery)</code>). Without this option, we will return an object array. Only has an affect when using in conjunction with native query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.transacted</code> </p></td><td colspan="1" rowspan=
 "1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.7.5/2.8.3/2.9: JPA consumer only:</strong> Whether to run the consumer in transacted mode, by which all messages will either commit or rollback, when the entire batch has been processed. The default behavior (false) is to commit all the previously successfully processed messages, and only rollback the last failed message. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.lockModeType</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>WRITE</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.11.2/2.12:</strong> To configure the lock mode on the consumer. The possible values is defined in the enum <code>javax.persistence.LockModeType</code>. The default value is changed to <code>PESSIMISTIC_WRITE</code> since <strong>Camel 2.13</strong>.</p></td></tr><tr><td colspan="1"
  rowspan="1" class="confluenceTd"><p> <code>consumer.SkipLockedEntity</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.13:</strong> To configure whether to use NOWAIT on lock and silently skip the entity. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>usePersist</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.5: JPA producer only:</strong> Indicates to use <code>entityManager.persist(entity)</code> instead of <code>entityManager.merge(entity)</code>. Note: <code>entityManager.persist(entity)</code> doesn't work for detached entities (where the EntityManager has to execute an UPDATE instead of an INSERT query)! </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>joinTransaction</code> </p></td><td c
 olspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.12.3:</strong> camel-jpa will join transaction by default from Camel 2.12 onwards. You can use this option to turn this off, for example if you use LOCAL_RESOURCE and join transaction doesn't work with your JPA provider. This option can also be set globally on the <code>JpaComponent</code>, instead of having to set it on all endpoints. </p></td></tr></tbody></table>
+</div></div><p>For sending to the endpoint, the <em>entityClassName</em> is optional. If specified, it helps the <a shape="rect" href="type-converter.html">Type Converter</a> to ensure the body is of the correct type.</p><p>For consuming, the <em>entityClassName</em> is mandatory.</p><p>You can append query options to the URI in the following format, <code>?option=value&amp;option=value&amp;...</code></p><h3 id="JPA-Options">Options</h3><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p> Name </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Default Value </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Description </p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>entityType</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <em>entityClassName</em> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> Overrides the <em>entityClassName</em>
  from the URI. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>persistenceUnit</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>camel</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> The JPA persistence unit used by default. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumeDelete</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> If <code>true</code>, the entity is deleted after it is consumed; if <code>false</code>, the entity is not deleted. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumeLockEntity</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Specifies whether or not 
 to set an exclusive lock on each entity bean while processing the results from polling. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>flushOnSend</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA producer only:</strong> Flushes the <a shape="rect" class="external-link" href="http://java.sun.com/javaee/5/docs/api/javax/persistence/EntityManager.html" rel="nofollow">EntityManager</a> after the entity bean has been persisted. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>maximumResults</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>-1</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>  <strong>JPA consumer only:</strong> Set the maximum number of results to retrieve on the <a shape="rect" class="external-link" href="http://java.sun.com/javaee/5/docs/api/javax/persistence
 /Query.html" rel="nofollow">Query</a>. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>transactionManager</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>null</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> This option is <a shape="rect" href="registry.html">Registry</a> based which requires the <code>#</code> notation so that the given <code>transactionManager</code> being specified can be looked up properly, e.g. <code>transactionManager=#myTransactionManager</code>. It specifies the transaction manager to use. If none provided, Camel will use a <code>JpaTransactionManager</code> by default. Can be used to set a JTA transaction manager (for integration with an EJB container). </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.delay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>500</code> </p></td><td colspan="1" rowspan="1" class="confluenceT
 d"><p> <strong>JPA consumer only:</strong> Delay in milliseconds between each poll. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.initialDelay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>1000</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Milliseconds before polling starts. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.useFixedDelay</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> Set to <code>true</code> to use fixed delay between polls, otherwise fixed rate is used. See <a shape="rect" class="external-link" href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ScheduledExecutorService.html" rel="nofollow">ScheduledExecutorService</a> in JDK for details. </p></td></tr>
 <tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>maxMessagesPerPoll</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>0</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> An integer value to define the maximum number of messages to gather per poll. By default, no maximum is set. Can be used to avoid polling many thousands of messages when starting up the server. Set a value of 0 or negative to disable. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.query</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a custom query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.namedQuery</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan
 ="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a named query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.nativeQuery</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>JPA consumer only:</strong> To use a custom native query when consuming data. You may want to use the option <code>consumer.resultClass</code> also when using native queries. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.parameters</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.12: JPA consumer only:</strong> This option is <a shape="rect" href="registry.html">Registry</a> based which requires the <code>#</code> notation. This key/value mapping is used for building the query parameters
 . It's is expected to be of the generic type <code>java.util.Map&lt;String, Object&gt;</code> where the keys are the named parameters of a given JPA query and the values are their corresponding effective values you want to select for. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.resultClass</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>&#160;</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.7: JPA consumer only:</strong> Defines the type of the returned payload (we will call <code>entityManager.createNativeQuery(nativeQuery, resultClass)</code> instead of <code>entityManager.createNativeQuery(nativeQuery)</code>). Without this option, we will return an object array. Only has an affect when using in conjunction with native query when consuming data. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.transacted</code> </p></td><td colspan="1" rowspan="1" class=
 "confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.7.5/2.8.3/2.9: JPA consumer only:</strong> Whether to run the consumer in transacted mode, by which all messages will either commit or rollback, when the entire batch has been processed. The default behavior (false) is to commit all the previously successfully processed messages, and only rollback the last failed message. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>consumer.lockModeType</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>WRITE</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.11.2/2.12:</strong> To configure the lock mode on the consumer. The possible values is defined in the enum <code>javax.persistence.LockModeType</code>. The default value is changed to <code>PESSIMISTIC_WRITE</code> since <strong>Camel 2.13</strong>.</p></td></tr><tr><td colspan="1" rowspan="
 1" class="confluenceTd"><p> <code>consumer.SkipLockedEntity</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.13:</strong> To configure whether to use NOWAIT on lock and silently skip the entity. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>usePersist</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>false</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.5: JPA producer only:</strong> Indicates to use <code>entityManager.persist(entity)</code> instead of <code>entityManager.merge(entity)</code>. Note: <code>entityManager.persist(entity)</code> doesn't work for detached entities (where the EntityManager has to execute an UPDATE instead of an INSERT query)! </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>joinTransaction</code> </p></td><td colspan="1"
  rowspan="1" class="confluenceTd"><p> <code>true</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.12.3:</strong> camel-jpa will join transaction by default from Camel 2.12 onwards. You can use this option to turn this off, for example if you use LOCAL_RESOURCE and join transaction doesn't work with your JPA provider. This option can also be set globally on the <code>JpaComponent</code>, instead of having to set it on all endpoints. </p></td></tr></tbody></table></div>
 <h3 id="JPA-MessageHeaders">Message Headers</h3><p>Camel adds the following message headers to the exchange:</p><div class="confluenceTableSmall">
 <table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p> Header </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Type </p></th><th colspan="1" rowspan="1" class="confluenceTh"><p> Description </p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>CamelJpaTemplate</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>JpaTemplate</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Not supported anymore since Camel 2.12:</strong>  The <code>JpaTemplate</code> object that is used to access the entity bean. You need this object in some situations, for instance in a type converter or when you are doing some custom processing. See <a shape="rect" class="external-link" href="https://issues.apache.org/jira/browse/CAMEL-5932">CAMEL-5932</a> for the reason why the support for this header has been dropped. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p> <
 code>CamelEntityManager</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>EntityManager</code> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <strong>Camel 2.12: JPA consumer / Camel 2.12.2: JPA producer:</strong> The JPA <code>EntityManager</code> object being used by <code>JpaConsumer</code> or <code>JpaProducer</code>. </p></td></tr></tbody></table>
 </div><h3 id="JPA-ConfiguringEntityManagerFactory">Configuring EntityManagerFactory</h3><p>Its strongly advised to configure the JPA component to use a specific <code>EntityManagerFactory</code> instance. If failed to do so each <code>JpaEndpoint</code> will auto create their own instance of <code>EntityManagerFactory</code> which most often is not what you want.</p><p>For example, you can instantiate a JPA component that references the <code>myEMFactory</code> entity manager factory, as follows:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">

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 <ul class="toc-indentation"><li><span class="TOCOutline">1</span> <a shape="rect" href="#ScalaDSL-EIP-Messagingsystems">Messaging systems</a>
 <ul class="toc-indentation"><li><span class="TOCOutline">1.1</span> <a shape="rect" href="#ScalaDSL-EIP-Pipelinepipeline">Pipeline</a></li><li><span class="TOCOutline">1.2</span> <a shape="rect" href="#ScalaDSL-EIP-Filterfilter">Filter</a></li></ul>
 </li><li><span class="TOCOutline">2</span> <a shape="rect" href="#ScalaDSL-EIP-Messagingchannels">Messaging channels</a>