3 Replies Latest reply on Jun 22, 2006 2:03 PM by Achim Hilwers

    Loosing PK on query

    Achim Hilwers Newbie


      I'm having a strange problem with my EJBs. I have created a base-class for my entity-ejbs that contains the primary-key-field and some other fields:

      public class JbsObject {
       private long id;
       public long getId() {
       return id;
       public void setId(long id) {
       this.id = id;

      Now I have an entity-ejb named "Address" that defines some more fields like "name", ...

      public class Address extends JbsObject implements Serializable {

      The tables are created correctly and I can add new entities without any problems.

      Now I want to fetch a list of addresses with a simple query in my stateless session-bean "AddressesBean":

      public class AddressesBean implements Addresses {
       private EntityManager manager;
       public List getAllAddresses() {
       Query q = manager.createQuery("from Address");
       return q.getResultList();

      When I invoke this method from my client-application I can retrieve all addresses with their data except their id. The id of every instance is 0. I have printed out the ids within the getAllAddresses-function - all is ok there. Only on the client I have no ids.

      What am I doing wrong?

      I'm using JBoss 4.04GA with Linux.