0 Replies Latest reply on Mar 29, 2007 11:47 AM by Tom Goring

    @Unwrap onto SFSB

    Tom Goring Apprentice

      Hi All,

      I have 2 'manager component' style beans. One called the 'Accountant' and the other 'User'. The idea is that in the session I store the id of these things and in my managers I get the real objects. Both are ScopeType.CONVERSATION. Both also use SLSB's to make the call to get the data.

      The idea is that I want it to be transparent to the application code that these objects are infact reread if they have not been cached in any current conversation.

      The User manager is itself a SFSB while the Accountant is a POJO (I'm trying to see the results of both methods).

      Now in another SFSB (my action handler) I get some odd results using the above...

      My first question is:
      1) If I Inject @In(value="User", required=true) I works first time the page is displayed, but second time get get a transaction not open exception. If I change this to @In(value="User", create=true) it works ?

      2) If I Inject @In(value='Accountant', create=true) I get a

      6:23:48,343 WARN [Contexts] Could not destroy component: accountantCRUDBean
      javax.ejb.EJBNoSuchObjectException: Could not find Stateful bean: 5c4o05-8pkcob-ezvcgh2q-1-ezvcx10a-2t
      
      but apart from that it works ?

      Here is my code:

      @Stateful
      @Name(UserComponentNames.User)
      @Scope(ScopeType.CONVERSATION)
      public class UserComponentManagerBean implements UserComponentManager {
      
       @In(value=UserComponentNames.UserId,required=false)
       private Long userId = null;
      
       @EJB
       private UserManagerLocal userManager;
      
       @Logger private Log log;
      
       private User cachedUser=null;
      
       @Create
       public void create() {
       log.info("create");
       }
      
       @Unwrap
       public User getUserComponent() {
       if ( cachedUser!=null ) {
       return cachedUser;
       }
       if ( userId!=null ) {
       cachedUser = userManager.getUser(userId);
       return cachedUser;
       }
       return null;
       }
      
       @Destroy @Remove
       public void destroy() {
       log.info("destroy");
       }
      }
      


      @Name(AccountantComponentNames.Accountant)
      @Scope(ScopeType.CONVERSATION)
      public class AccountantComponentManager {
      
       @In(value=AccountantComponentNames.AccountantId,required=false)
       private Long accountantId = null;
      
       @In(create=true)
       private CompanyManagerLocal companyManagerLocal;
      
       private Accountant cachedAccountant=null;
      
       @Unwrap
       public Accountant getAccountantComponent() {
       if ( cachedAccountant!=null ) {
       return cachedAccountant;
       }
       if ( accountantId!=null ) {
       cachedAccountant = companyManagerLocal.getAccountant(accountantId);
       return cachedAccountant;
       }
       return null;
       }
      }
      


      @Stateful
      @Scope(ScopeType.CONVERSATION)
      @Name("accountantCRUDBean")
      public class AccountantCRUDBean extends StandardCRUDBean<Accountant> implements AccountantCRUD, Serializable {
       private static final long serialVersionUID = 1L;
      
       @In(value=AccountantComponentNames.Accountant, create=true)
       private Accountant userLinkedAccountant=null;
      
       @In(value=UserComponentNames.User, create=true)
       private User user;
      
       @EJB
       private CompanyManagerLocal companyManager=null;