public  void begin() throws SystemException, NotSupportedException

 public  void commit() throws SystemException, SecurityException, RollbackException, IllegalStateException, HeuristicRollbackException, HeuristicMixedException

 public int getStatus() throws SystemException

 public  void rollback() throws SystemException, SecurityException, IllegalStateException

 public  void setRollbackOnly() throws SystemException, IllegalStateException

 public  void setTransactionTimeout(int seconds) throws SystemException