/**
  * Updates the state of a detached Event.
  *
  * @param event
  */
 public void update(Event event) throws DataAcessLayerException {
   super.saveOrUpdate(event);
 }
 /**
  * Delete a detached Event from the database.
  *
  * @param event
  */
 public void delete(Event event) throws DataAcessLayerException {
   super.delete(event);
 }