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PersistenceContext injection from a different jar
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created by <a href="http://community.jboss.org/people/guinotphil">guinotphil</a> in <i>JBoss AS7 Development</i> - <a href="http://community.jboss.org/message/619188#619188">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm trying to deploy an application with many EJB/WAR modules.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>One of them defines the persistence entities, as well as the <strong>persistence.xml</strong> file:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier; font-size: 8pt;"><?xml version="1.0" encoding="UTF-8"?></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span><persistence xmlns="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span>             xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span>             xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span> </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">             version="2.0"></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><persistence-unit name="entityManagerFactory" transaction-type="JTA"></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">    <provider>org.hibernate.ejb.HibernatePersistence</provider></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">    <jta-data-source>java:jboss/datasources/OracleDS</jta-data-source></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">    <properties></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">        <property name="jboss.as.jpa.providerModule" value="org.hibernate3"/></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">...</span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">...</span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">...<br/></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">    </properties></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"></persistence-unit></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Then, in other modules, I've got to refer the entityManagerFactory. But,it gives me the following error:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">Can't find a deployment unit named entityManagerFactory at subdeployment "EJB_Module.jar" of deployment "EAR_Project.ear"</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've tryied to replace </p><p><span style="font-family: courier new,courier; font-size: 10pt;">@PersistenceContext(unitName="entityManagerFactory")</span></p><p>by</p><p><span style="font-family: courier new,courier;">@PersistenceContext(unitName="EJB_DBModule.jar#entityManagerFactory")</span></p><p>or</p><p><span style="font-family: courier new,courier;">@PersistenceContext(unitName="../EJB_DBModule.jar#entityManagerFactory")</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But, I still get the same error.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>I've tried the workaround mentionned here : </span><a class="jive-link-external-small" href="http://community.jboss.org/thread/2111" target="_blank">http://community.jboss.org/thread/2111</a><span> and created in each module a </span><strong>persistence.xml</strong> file which refers the entities jar file :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier; font-size: 8pt;"><?xml version="1.0" encoding="UTF-8" ?></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span><persistence xmlns="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span>             xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"><span>             xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span> </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd</a><span>"</span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">             version="2.0"></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">   <persist<span style="font-size: 8pt;">ence-unit name="entityManagerFactory"></span></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">     <jar-file>EJB_DBModule.jar</jar-file></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;">   </persistence-unit></span></p><p><span style="font-family: courier new,courier; font-size: 8pt;"></persistence></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But, it actually doesn't seem to load configuration from the jar file and so doesn't connect me to the database:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier; font-size: 8pt;">org.hibernate.HibernateException: 'hibernate.dialect' must be set when no Connection available</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt; font-family: arial,helvetica,sans-serif;">How can I share my entity manager between all the modules ? Should I duplicate all the configuration from <strong>persistence.xml</strong> in every module ?</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt; font-family: arial,helvetica,sans-serif;">Thank you very much</span></p><p><span style="font-size: 10pt; font-family: arial,helvetica,sans-serif;"><br/></span></p></div>
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