5 Replies Latest reply on Jun 28, 2007 4:25 AM by knuwu

    How to create hibernate criteria

    knuwu Newbie

      Hi

      I like to create a hibernate criteria instead a normal query.

       @PersistenceContext(type=PersistenceContextType.EXTENDED)
       private EntityManager em;
      
       public void search()
       {
       log.info("Get all users");
      
       Criteria c = ((Session)em.getDelegate()).createCriteria(User.class)
       .setMaxResults(this.pageSize)
       .addOrder(Order.asc("userid"));
      
       if (user.getUserid() != null && user.getUserid().length() > 0) {
       c.add(Restrictions.like("userid", user.getUserid() + "%"));
       }
      
       this.userList = c.list();
      


      I always get an ClassCastException for the Session.

      Caused by: java.lang.ClassCastException: org.hibernate.ejb.EntityManagerImpl
       at com.swisscom.seat.modules.base.admin.UserManagerBean.search(UserManagerBean.java:132)
       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.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:37)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
      ...
      ...
      


      How can one get the Hiberate Session to create a criteria?

      Im using a standard seam 1.2.1 configuration generated by seam-gen.

      Thanks!