code: public Iterable<DContact> queryByCreatedDate(Object parent, java.util.Date createdDate) {
      return queryByField(parent, DContactMapper.Field.CREATEDDATE.getFieldName(), createdDate);
    }
docs: query-by method for field createdDate
  @param createdDate the specified attribute
  @return an Iterable of DContacts for the specified createdDate