I tried with and without that annotation...
The result was the same... the Id field had null!
On 8/17/07, Marina Vatkina <Marina.Vatkina_at_sun.com> wrote:
>
> Daniel,
>
> You do not have @GeneratedValue set on the @Id field. Who is expected to
> populate the value?
>
> thanks,
> -marina
>
> Daniel Cavalcanti wrote:
> >
> > I have an EJB that persists, updates, removes, etc an entity... (create
> > using NetBeans).
> > From another EJB, BeanB, I create an entity and use the BeanA to
> persist.
> >
> > @Entity
> > @Table(name = "resource_requests")
> > public class ResourceRequests implements Serializable {
> >
> > @Id()
> > @Column(name = "id", nullable = false)
> > private BigInteger id;
> >
> > @Column(name = "start_date", nullable = false)
> > @Temporal(TemporalType.DATE)
> > private Date startDate;
> >
> > ...
> >
> > }
> >
> > @Stateless()
> > public class ResourceRequestsBean
> > implements ... {
> >
> > @PersistenceContext()
> > private EntityManager em;
> >
> > public ResourceRequestsFacade() {
> > }
> >
> > public void create(ResourceRequests entity) {
> > em.persist(entity);
> > }
> >
> > public ResourceRequests edit(ResourceRequests entity) {
> > return em.merge(entity);
> > }
> >
> > public void destroy(ResourceRequests entity) {
> > entity = em.merge(entity);
> > em.remove(entity);
> > }
> >
> > ...
> >
> > }
> >
> >
> > @Stateful()
> > public class SomeBean
> > implements ... {
> >
> > @EJB()
> > private ResourceRequestsFacadeLocal resourceRequestsFacade;
> >
> > @EJB()
> > private ResourcesFacadeLocal resourcesFacade;
> >
> > @EJB()
> > private UsersFacadeLocal usersFacade;
> >
> > public void requestValet(Users user, String ticket) {
> >
> > //
> > ******************************************************************
> > // Data tier
> > //
> > ******************************************************************
> >
> > ResourceRequests request = new ResourceRequests();
> >
> > request.setStartDate (new Date(System.currentTimeMillis()));
> > request.setResourceId(valet);
> > request.setUserId(user);
> >
> > valet.getResourceRequestsCollection().add(request);
> > user.getResourceRequestsCollection ().add(request);
> >
> > resourceRequestsFacade.create(request);
> > resourcesFacade.edit(valet);
> > usersFacade.edit(user);
> >
> > request = resourceRequestsFacade.edit(request);
> >
> > //
> > ******************************************************************
> > // Messaging tier
> > //
> > ******************************************************************
> >
> > ...
> >
> > }
> >
> > }
> >
> > Now, in the code after the Messaging tier comments, I need the request
> > entity id... Which is still NULL.
> > I've tried many different things, but I can't figure out how to get the
> > value persisted in the DB. Furthermore, I can't look that entity up
> > because I don't have the PK?!?
> >
> > How can I do that?
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe_at_glassfish.dev.java.net
> For additional commands, e-mail: users-help_at_glassfish.dev.java.net
>
>