public SelectClause add(String... propertyNames){
  for (  String name : propertyNames) {
    selectList.add(new SelectClauseExpression(new PropertyValueExpression(name)));
  }
  return this;
}

public SelectClause add ( String ... propertyNames ) { for ( String name : propertyNames ) { selectList . add ( new SelectClauseExpression ( new PropertyValueExpression ( name ) ) ) ; } return this ; }
adds property names to be selected .
