Please shift my-domain.jar to lib/ folder of you .ear from root (See
section 8.2 of JPA 2.0 spec for details). That should make it work.
On 7/1/2010 9:18 AM, Thibault Billet wrote:
> Hi,
>
> I'm fairly new to glassfish and i can't manage to deploy properly my
> enterprise application on it.
> I'm using Glassfish 3.0.1 and JPA 2 with Hibernate 3.5.0 as a
> persistence provider. My Ear used to deploy and initialize itself just
> fine on Jboss 6 M2, but for some reason i wanted to migrate to Glassfish.
>
> Problem is, the EntityManager injection doesn't seem to work in my Dao
> session bean
>
> Here is the structure of my Ear:
>
> Ear
> ________________
> - META-INF
> --- application.xml
>
> - my-domain.jar
> --- META-INF
> ------ persistence.xml
> --- POJOs
>
> - my-ejb-daos.jar
> --- MyDAO
>
> - library.jar
>
> - my-web.war
>
> my-ejb-daos.jar contain a reference to my-domain.jar in its manifest's
> class-path entry.
>
> I created a Connection pool which i can ping successfully and a jdbc
> resource with the exact same name as the jta-data-source element in my
> persistence.xml
>
> persistence.xml :
> <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="MY-UNIT-NAME" transaction-type="JTA">
> <provider>org.hibernate.ejb.HibernatePersistence</provider>
> <jta-data-source>jdbc/MY-DATASOURCE</jta-data-source>
> <properties>
> <property name="hibernate.dialect"
> value="org.hibernate.dialect.SQLServerDialect" />
> <property name="hibernate.hbm2ddl.auto" value="update" />
> </properties>
> </persistence-unit>
> </persistence>
>
>
> Deployment fails just after the servlet startup. the servlet tries to
> load some data from the domain via my DAO and it fails and throw this
> exception:
>
> java.lang.IllegalStateException: Unable to retrieve
> EntityManagerFactory for unitName MY-UNIT-NAME
>
> In my DAO, I just try to inject an EntityManagerFactory like this
> @PersistenceContext(unitName="MY-UNIT-NAME")
> protected EntityManager entityManager;
>
> and then use it like in this example:
> return entityManager.find(entityClass, id);
>
> After reading this thread :
> (http://forums.java.net/jive/thread.jspa?messageID=396967 ), I tried
> putting persistence.xml in the META-INF folder of my-ejb-daos.jar but
> that doesn't help.
>
> Any idea why the persistence unit isn't resolved ?