public List<Menu> findBySubject(Integer isSubject) {
   return menuDAO.findBySubject(isSubject);
 }
 public List<Menu> findByNavigation(Integer id, Integer isNavigation) {
   return menuDAO.findByNavigation(id, isNavigation);
 }
 public List<Menu> findByFatherId(Integer fatherId) {
   return menuDAO.findByFatherId(fatherId);
 }
 public List<Menu> findAll() {
   return menuDAO.findAll();
 }
 public Menu findById(Integer id) {
   return menuDAO.get(id);
 }
 public void remove(Integer id) {
   menuDAO.delete(id);
 }
 public void save(Menu menu) {
   menuDAO.saveOrUpdate(menu);
 }