public int compare(Object obj1, Object obj2) {
   DiathermyPlateDetailVo voObj1 = (DiathermyPlateDetailVo) obj1;
   DiathermyPlateDetailVo voObj2 = (DiathermyPlateDetailVo) obj2;
   return direction * (voObj1.compareTo(voObj2, this.caseInsensitive));
 }