protected UifDisplayHint getHintOfType(DataObjectAttribute attr, UifDisplayHintType hintType) {
   if (attr != null && attr.getDisplayHints() != null) {
     for (UifDisplayHint hint : attr.getDisplayHints()) {
       if (hint.value().equals(hintType)) {
         return hint;
       }
     }
   }
   return null;
 }