@Override
 public Feedback getOneFeedbackByID(int id) {
   return feedbackDao.getOneFeedbackByID(id);
 }
 @Override
 public void deleteOneFeedbackByID(int id) {
   feedbackDao.deleteOneFeedbackByID(id);
 }
 @Override
 public List<Feedback> getFeedback(int pageSize, int currentPage) {
   return feedbackDao.getFeedback(pageSize, currentPage);
 }
 @Override
 public int getFeedbackTotalPage(int pageSize) {
   return feedbackDao.getFeedbackTotalPage(pageSize);
 }
 @Override
 public int getFeedbackTotalCount() {
   return feedbackDao.getFeedbackTotalCount();
 }
 @Override
 public List<Feedback> getAllFeedback() {
   return feedbackDao.getAllFeedback();
 }
 @Override
 public Serializable saveFeedback(Feedback feedback) {
   return feedbackDao.saveFeedback(feedback);
 }