[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Persistence Problem with Jboss 4.0.3, Hibernate
I'm a persistence/EJB 3 newbie having difficulties initializing my
EntityManagerFactory. The error I'm getting is the infamous "No Persistence
provider for Entity Manager "....
Here is my setup:
* JBoss 4.0.3SP1
* PostgreSQL 8.2.4
* Hibernate persistence
* Deployed EAR:
vram.ear
| |
| -- vram-ejbs.jar
| |
| -- hibernate.properties
| -- META-INF/persistence.xml
* persistence.xml
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
version="1.0">
| <persistence-unit name="vramPu">
| <provider>org.hibernate.ejb.HibernatePersistence</provider>
| <jta-data-source>java:/nicweb/DataSource</jta-data-source>
| </persistence-unit>
| <properties>
| <property name="hibernate.dialect"
value="org.hibernate.dialect.PostgreSQLDialect"/>
| <property name="hibernate.show_sql" value="true"/>
| </properties>
| </persistence>
* hibernate.properties
hibernate.dialect org.hibernate.dialect.PostgreSQLDialect
hibernate.connection.driver_class org.postgresql.Driver
hibernate.connection.url jdbc:postgresql://localhost/nicweb
hibernate.connection.username nicweb-admin
hibernate.connection.password nicweb-admin
* EJB Stateless Session Bean
@Stateless
| public class MyClass implements MyClassRemote {
|
| @PersistenceContext
| private EntityManager em;
|
| @PersistenceUnit
| private EntityManagerFactor emf;
|
| ...
|
| /* Error thrown at this call... */
| emf = Persistence.createEntityManagerFactory("vramPu");
| em = emf.createEntityManager();
I think the Persistence API is able to locate the persistence.xml file, and the
hibernate.properties is loaded (but not sure if needed).
Any help is greatly appreciated.
Regards,
Mike
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