/**
  * Method to query objects from the database. The following call in runQuery() dbQuery.query( this
  * ); causes the dbQuery object to invoke executeQuery()
  *
  * @param conn Handle to database connection.
  * @exception java.sql.SQLException If a database access error occurs.
  */
 public ResultSet executeQuery(DBConnection conn) throws SQLException {
   resultSet = builder.executeQuery(conn);
   return resultSet;
 }