[jboss-dev-forums] [JBoss AS7 Development] - PersistenceContext injection from a different jar

guinotphil [http://community.jboss.org/people/guinotphil] created the discussion "PersistenceContext injection from a different jar" To view the discussion, visit: http://community.jboss.org/message/619188#619188 -------------------------------------------------------------- Hi, I'm trying to deploy an application with many EJB/WAR modules. One of them defines the persistence entities, as well as the *persistence.xml* file: <?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence"              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"              xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"              version="2.0"> <persistence-unit name="entityManagerFactory" transaction-type="JTA">     <provider>org.hibernate.ejb.HibernatePersistence</provider>     <jta-data-source>java:jboss/datasources/OracleDS</jta-data-source>     <properties>         <property name="jboss.as.jpa.providerModule" value="org.hibernate3"/> ... ... ...     </properties> </persistence-unit> Then, in other modules, I've got to refer the entityManagerFactory. But,it gives me the following error: Can't find a deployment unit named entityManagerFactory at subdeployment "EJB_Module.jar" of deployment "EAR_Project.ear" I've tryied to replace @PersistenceContext(unitName="entityManagerFactory") by @PersistenceContext(unitName="EJB_DBModule.jar#entityManagerFactory") or @PersistenceContext(unitName="../EJB_DBModule.jar#entityManagerFactory") But, I still get the same error. I've tried the workaround mentionned here : http://community.jboss.org/thread/2111 http://community.jboss.org/thread/2111 and created in each module a *persistence.xml* file which refers the entities jar file : <?xml version="1.0" encoding="UTF-8" ?> <persistence xmlns="http://java.sun.com/xml/ns/persistence"              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"              xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"              version="2.0">    <persistence-unit name="entityManagerFactory">      <jar-file>EJB_DBModule.jar</jar-file>    </persistence-unit> </persistence> But, it actually doesn't seem to load configuration from the jar file and so doesn't connect me to the database: org.hibernate.HibernateException: 'hibernate.dialect' must be set when no Connection available How can I share my entity manager between all the modules ? Should I duplicate all the configuration from *persistence.xml* in every module ? Thank you very much -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/619188#619188] Start a new discussion in JBoss AS7 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]