get all classes from archiv,which are annotiated as @entity

florian79 · **Joined:** Thu Sep 21, 2006 2:49 am **Posts:** 24

The Configuration Object in a Java SE Hibernate Envirement provides the Method getClassMappings() to browse al the mapped classes. Is there some similar way to get all Classes from my archiv, which are annotiated as @entity?

Something like: EntityManager.getEJB3Configuration().getClassMappings();

Thank you in advance!

florian79 · **Joined:** Thu Sep 21, 2006 2:49 am **Posts:** 24

I am looking for a possibility to get all Entity- Classes, that are managed by the Container or the EntityManager.

Realy no Idea?

florian79 · **Joined:** Thu Sep 21, 2006 2:49 am **Posts:** 24

is there realy no solution??? is something to do with the class loader??

emmanuel · **Posted:** Thu Feb 15, 2007 7:49 pm

there is a way to keep the configuration around using the property hibernate.ejb.configuration_jndi_name

Or you can create your own Ejb3Configuration and keep it.

otherwise (it will be lighter wrt memory), you can do ( (EntityManager) session).getSessionFactory().getAllClassMetadata()

florian79 · **Joined:** Thu Sep 21, 2006 2:49 am **Posts:** 24

Thank you for this advice. I created a statless Sessionbean as followed:

Code:

@Stateless
public class BaseSession implements BaseSessionRemote, BaseSessionLocal
{

    @Resource SessionContext context;
    @PersistenceContext(unitName="myName") private EntityManager entityManager;

    public Map<String,EntityPersister> getAllClassMetadata()
    {
   Map<String,EntityPersister> metadata = null;
   try
   {
       HibernateEntityManager hibernateEntityManager = (HibernateEntityManager)entityManager.getDelegate();
       metadata = hibernateEntityManager.getSession().getSessionFactory().getAllClassMetadata();
   }
   catch(ClassCastException e)
   {
       LoggerImpl.getInstance().log(Logger.iLOGG_ERROR, this, e);
       metadata = new HashMap<String,EntityPersister>();
   }
   return metadata;
    }
}

And that works fine!!