How to use

transform

method

in

org.apache.jena.ext.com.google.common.collect.Iterators

  @Override
  public ResultSet execSelect() {
    ResultSet rs = super.execSelect();

    List<String> varNames = rs.getResultVars();
    Iterator<Binding> it = ResultSetUtils.toIteratorBinding(rs);
    Iterator<Binding> iu = Iterators.transform(it, b -> BindingUtils.rename(b, varMap));

    ResultSet result = ResultSetUtils.create(varNames, iu);
    return result;
  }
}