2 Replies Latest reply on Sep 16, 2009 6:32 AM by Eneldo Serrata

    catch java exception in flex

    Eneldo Serrata



      in my pojo i have one object


      @Column(name = "GRUPO", unique = true, nullable = false, length = 45)

      public String getGrupo() {
              return this.grupo;


      then i have a DAO Class to save object in database like this


      public void save(Gruposdeusuarios entity) {
              EntityManagerHelper.log("saving Gruposdeusuarios instance", Level.INFO,
              try {
                  EntityManagerHelper.log("save successful", Level.INFO, null);           
              } catch (RuntimeException re) {
                  EntityManagerHelper.log("save failed", Level.SEVERE, re);
                  throw re;


      then i have AbstractAssembler to make a call from flex to dao


      public void createItem(Object entity){
              GruposdeusuariosDAO dao = new GruposdeusuariosDAO();
              dao.save((Gruposdeusuarios) entity);


      if i duplicate de object i get this exception


      GRAVE: save failed
      javax.persistence.RollbackException: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.DatabaseException
      Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'ENELDO' for key 'GRUPO'
      Error Code: 1062
      Call: INSERT INTO mydaniel.gruposdeusuarios (GRUPO) VALUES (?)
          bind => [ENELDO]


      the question is


      how i can catch the Error Code:1062 and Duplicate Key Name "GRUPO" to flex dataservice on fault to tell flex user it trying to duplicate value


      i using Tomcat 6 , Livecycle Data Service 2.5, mysql-connector-java-5.1.8-bin, JPA Toplink and Flex Builder 3.3