hibernate

Question

'#{groupBean.valider}' Target Unreachable, identifier 'groupBean' resolved to null
javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)

cause mère 


//////////////voici le code////::::
 public List getList() throws SystemException{
        List list = new ArrayList();
         UserGroup userGroup=new  UserGroup();
          Session session = (Session) HibernateUtil.getSessionFactory();
        Transaction tx = null;
          try{
            tx=(Transaction) session.beginTransaction();
         list=(List)session.createQuery("from User_group").list();

            session.flush();
            tx.commit();
        }
         catch (Exception e) {
            if (tx != null) {
                tx.rollback();
            }
        }
        return list;
    }

smarticu · Answer

session.createCriteria(UserGroup.class).list(); 
ou 
session.createQuery("from UserGroup").list();

Hibernate

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