@Override
  protected RowQuery<String, IndexColumnName> genQuery() {
    RowQuery<String, IndexColumnName> query =
        _keyspace
            .prepareQuery(_field.getIndexCF())
            .getKey(_indexKey.toString())
            .withColumnRange(_field.buildPrefixRange(_prefix, pageCount));

    return query;
  }
 @Override
 public Class<? extends DataObject> getDataObjectType() {
   return _field.getDataObjectType();
 }