3 Replies Latest reply on Apr 17, 2007 9:23 AM by fhh

    EJB 3.0 Locking (entity not in the persistence context)

    paata lominadze Master

      hi all,
      i have some problems about locking,

      i have 1 remote and one local interface
      1. Remote Interface

      public @Stateful
      @Remote(RemoteInterface.class)
      class RemoteInterfaceBean implements RemoteInterface
      {
      
       @PersistenceContext(unitName = "CustomerCareOracle")
       private EntityManager oracleManager;
      
       public MySomeEntityObject object;
      
       @EJB
       MyLocalInterface inter;
      
      
       @TransactionAttribute(TransactionAttributeType.REQUIRED)
       public void fillMyObject(someparameters .... )
       {
       // filling MySomeEntityObject object
       }
      
       @TransactionAttribute(TransactionAttributeType.REQUIRED)
       public void commitMyObject()
       {
       inter.AnotherOperatOnObject(object);
       oracleManager.persist(object);
       }
      }
      


      2. My Local Interface
      public @Stateless
      @Local(MyLocalInterface.class)
      class MyLocalInterfaceBean implements MyLocalInterface
      {
      
       @PersistenceContext(unitName = "CustomerCareOracle")
       private EntityManager oracleManager;
      
       @TransactionAttribute(TransactionAttributeType.REQUIRED)
       public void AnotherOperatOnObject(MySomeEntityObject object)
       {
       oracleManager.lock(object,LockModeType.READ); // <= Here I Got An Error
       // do some operation and is succsess, It's very good ;)
       }
      }
      
      


      when i tryed to lock object i got an error, i can't resolve this problem :(
      can anybody help me ?

      error trace

      17:43:21,343 ERROR [errorCat] java.lang.IllegalArgumentException: entity not in the persistence context
       at org.hibernate.ejb.AbstractEntityManagerImpl.lock(AbstractEntityManagerImpl.java:336)
       at org.jboss.ejb3.entity.TransactionScopedEntityManager.lock(TransactionScopedEntityManager.java:101)
       at com.magti.businesslayer.ejb3Fasade.oracle.ccare.TransactionFasadeBean.lockAccounts(TransactionFasadeBean.java:203)
       at com.magti.businesslayer.ejb3Fasade.oracle.ccare.TransactionFasadeBean.doAfterCheck(TransactionFasadeBean.java:76)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
       at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
      
      



      Regards,
      Paata.