<?php /* * $Id: Oracle.php 5665 2009-04-21 20:38:57Z jwage $ * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * and is licensed under the LGPL. For more information, see * <http://www.phpdoctrine.org>. */ /** * * @author Konsta Vesterinen <kvesteri@cc.hut.fi> * @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library) * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @package Doctrine * @subpackage Transaction * @link www.phpdoctrine.org * @since 1.0 * @version $Revision: 5665 $ */ 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 $this->conn->execute($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 $this->conn->execute($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 SET ISOLATION_LEVEL = ' . $isolation; return $this->conn->execute($query); } }