code: public Iterable<DContact> queryByCreatedBy(Object parent, java.lang.String createdBy) {
      return queryByField(parent, DContactMapper.Field.CREATEDBY.getFieldName(), createdBy);
    }
docs: query-by method for field createdBy
  @param createdBy the specified attribute
  @return an Iterable of DContacts for the specified createdBy