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&option=value&...</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> </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> </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> </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> </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<String, Object></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> </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&option=value&...</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> </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> </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> </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> </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<String,
Object></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> </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">
Modified: websites/production/camel/content/scala-dsl-eip.html
==============================================================================
--- websites/production/camel/content/scala-dsl-eip.html (original)
+++ websites/production/camel/content/scala-dsl-eip.html Fri Mar 14 10:20:20
2014
@@ -100,11 +100,11 @@ You can check the <a shape="rect" class=
<style type="text/css">/*<![CDATA[*/
-div.rbtoc1393618806463 {padding: 0px;}
-div.rbtoc1393618806463 ul {list-style: none;margin-left: 0px;}
-div.rbtoc1393618806463 li {margin-left: 0px;padding-left: 0px;}
+div.rbtoc1394792335118 {padding: 0px;}
+div.rbtoc1394792335118 ul {list-style: none;margin-left: 0px;}
+div.rbtoc1394792335118 li {margin-left: 0px;padding-left: 0px;}
-/*]]>*/</style><div class="toc-macro rbtoc1393618806463">
+/*]]>*/</style><div class="toc-macro rbtoc1394792335118">
<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>
