. */ Doctrine::autoload('Doctrine_Transaction'); /** * * @author Konsta Vesterinen * @author Lukas Smith (PEAR MDB2 library) * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @package Doctrine * @category Object Relational Mapping * @link www.phpdoctrine.com * @since 1.0 * @version $Revision$ */ class Doctrine_Transaction_Oracle extends Doctrine_Transaction { /** * createSavepoint * creates a new savepoint * * @param string $savepoint name of a savepoint to set * @return void */ protected function createSavePoint($savepoint) { $query = 'SAVEPOINT '.$savepoint; return $this->conn->getDbh()->query($query); } /** * releaseSavePoint * releases given savepoint * * @param string $savepoint name of a savepoint to release * @return void */ protected function releaseSavePoint($savepoint) { // oracle doesn't support manual releasing of savepoints return true; } /** * rollbackSavePoint * releases given savepoint * * @param string $savepoint name of a savepoint to rollback to * @return void */ protected function rollbackSavePoint($savepoint) { $query = 'ROLLBACK TO SAVEPOINT '.$savepoint; return $this->conn->getDbh()->query($query); } /** * Set the transacton isolation level. * * @param string standard isolation level * READ UNCOMMITTED (allows dirty reads) * READ COMMITTED (prevents dirty reads) * REPEATABLE READ (prevents nonrepeatable reads) * SERIALIZABLE (prevents phantom reads) * @throws PDOException if something fails at the PDO level * @throws Doctrine_Transaction_Exception if using unknown isolation level * @return void */ public function setIsolation($isolation) { switch($isolation) { case 'READ UNCOMMITTED': $isolation = 'READ COMMITTED'; break; case 'READ COMMITTED': case 'REPEATABLE READ': case 'SERIALIZABLE': $isolation = 'SERIALIZABLE'; break; default: throw new Doctrine_Transaction_Exception('Isolation level ' . $isolation . ' is not supported.'); } $query = 'ALTER SESSION ISOLATION LEVEL ' . $isolation; return $this->conn->getDbh()->query($query); } }