@Override
 public int hashCode() {
   final int prime = 31;
   int result = 1;
   result = prime * result + ((template == null) ? 0 : template.hashCode());
   result = prime * result + ((textDefault == null) ? 0 : textDefault.hashCode());
   result = prime * result + ((textKey == null) ? 0 : textKey.hashCode());
   result = prime * result + ((detailKey == null) ? 0 : detailKey.hashCode());
   return result;
 }