public Long save(final CmtSpecialSubjectVO cmtSpecialSubject) {
   if (null == cmtSpecialSubject) {
     return null;
   }
   if (null == cmtSpecialSubject.getId()) {
     cmtSpecialSubjectDAO.insert(cmtSpecialSubject);
   } else {
     cmtSpecialSubjectDAO.update(cmtSpecialSubject);
   }
   return cmtSpecialSubject.getId();
 }