/**
  * Retrieve multiple objects by pkey.
  *
  * @param      array $pks List of primary keys
  * @param      PropelPDO $con the connection to use
  * @throws     PropelException Any exceptions caught during processing will be
  *		 rethrown wrapped into a PropelException.
  */
 public static function retrieveByPKs($pks, PropelPDO $con = null)
 {
     if ($con === null) {
         $con = Propel::getConnection(Usuario_interesesPeer::DATABASE_NAME, Propel::CONNECTION_READ);
     }
     $objs = null;
     if (empty($pks)) {
         $objs = array();
     } else {
         $criteria = new Criteria(Usuario_interesesPeer::DATABASE_NAME);
         $criteria->add(Usuario_interesesPeer::ID, $pks, Criteria::IN);
         $objs = Usuario_interesesPeer::doSelect($criteria, $con);
     }
     return $objs;
 }