[jboss-user] [EJB 3.0] - EntityManagerFactory null ?

[gbasilico]

Hello,
I want to access an entity from the client side, without using a session bean (If i use a session bean it works fine). I made a simple entity class :

  | @Entity
  | public class Produit implements Serializable {
  | 
  |    @Id
  |    private String id;
  |    private String libelle;
  |    private int quantiteEnStock;
  | 
  |    public Produit() {
  |       super();
  |    }
  | 
  |    public Produit(String id) {
  |       this.id = id;
  |    }
  | 
  |    public Produit(String id, String libelle, int quantiteEnStock) {
  |       this.id = id;
  |       this.libelle = libelle;
  |       this.quantiteEnStock = quantiteEnStock;
  |    }
  | 
  |    public String getLibelle() {
  |       return libelle;
  |    }
  | ...
  | 
I have also made a persistence.xml, which i put in the META-INF directory :

  | <persistence>
  |    <persistence-unit name="Produit">
  |    <provider>org.hibernate.ejb.HibernatePersistence</provider>
  | 	<jta-data-source>java:/DefaultDS</jta-data-source>
  |       <properties>
  |          <property name="hibernate.hbm2ddl.auto" value="update"/>
  | 	 <property name="jboss.entity.manager.factory.jndi.name" value="Produit"/>
  |       </properties>
  |    </persistence-unit>
  | </persistence>
  | 
On the client side, i have the following code :


  | Hashtable env = new Hashtable();
  | env.put("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
  | env.put("java.naming.factory.url.pkgs","org.jboss.naming:org.jnp.interfaces");
  | env.put("java.naming.provider.url","localhost:1099");
  | 	  		
  | Context ctx = new InitialContext(env);
  | 	         
  | NamingEnumeration ne = ctx.list("");
  | while(ne.hasMore())
  | {
  |   NameClassPair nc = (NameClassPair)ne.next();
  |   System.out.println("Entry is ... "+nc.getName()+" -- "+nc.getClassName());
  | }
  | Object obj = ctx.lookup("Produit");
  | System.out.println(obj.toString());
  | 
I can see the "Produit" in the list (it's type is org.jboss.ejb3.entity.InjectedEntityManagerFactory) but the lookup returns null. I also tried with 

  | EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory("Produit");
  |  but it doesn't work either.
Do you have any clue of what i am doing wrong ? Is it at least possible ?
I'm using JBoss 4.0.5 and Eclipse 3.2.
Thanks in advance for your help.
Regards,

Guillaume Basilico

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