@Override
 protected void addData(
     HttpServletRequest req,
     HttpServletResponse resp,
     User user,
     Collection<VehicleType> result,
     int pageSize,
     int page,
     String searchText,
     int limit) {
   result.addAll(
       VehicleTypeUtil.getInstance()
           .findByCompany(user.getCompany(), pageSize, page, searchText, limit));
 }
 @Override
 protected int getTotalItems(User user) {
   return VehicleTypeUtil.getInstance().getTotalItems(user.getCompany());
 }