/**
  * Prepares the Criteria object and uses the parent doSelect()
  * method to get a ResultSet.
  *
  * Use this method directly if you want to just get the resultset
  * (instead of an array of objects).
  *
  * @param      Criteria $criteria The Criteria object used to build the SELECT statement.
  * @param      Connection $con the connection to use
  * @throws     PropelException Any exceptions caught during processing will be
  *		 rethrown wrapped into a PropelException.
  * @return     ResultSet The resultset object with numerically-indexed fields.
  * @see        BasePeer::doSelect()
  */
 public static function doSelectRS(Criteria $criteria, $con = null)
 {
     if ($con === null) {
         $con = Propel::getConnection(self::DATABASE_NAME);
     }
     if (!$criteria->getSelectColumns()) {
         $criteria = clone $criteria;
         SystemsPeer::addSelectColumns($criteria);
     }
     // Set the correct dbName
     $criteria->setDbName(self::DATABASE_NAME);
     // BasePeer returns a Creole ResultSet, set to return
     // rows indexed numerically.
     return BasePeer::doSelect($criteria, $con);
 }