<?php

/*

 *  $Id$

 *

 * 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.doctrine-project.org>.

 */

namespace Doctrine\ORM\Query\Exec;

use Doctrine\DBAL\Connection,

    Doctrine\ORM\Query\AST;

/**

 * Executor that executes the SQL statements for DQL DELETE/UPDATE statements on classes

 * that are mapped to a single table.

 *

 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL

 * @author      Roman Borschel <roman@code-factory.org>

 * @version     $Revision$

 * @link        www.doctrine-project.org

 * @since       2.0

 * @todo This is exactly the same as SingleSelectExecutor. Unify in SingleStatementExecutor. 

 */

class SingleTableDeleteUpdateExecutor extends AbstractSqlExecutor

{

    public function __construct(AST\Node $AST, $sqlWalker)

    {

        if ($AST instanceof AST\UpdateStatement) {

            $this->_sqlStatements = $sqlWalker->walkUpdateStatement($AST);

        } else if ($AST instanceof AST\DeleteStatement) {

            $this->_sqlStatements = $sqlWalker->walkDeleteStatement($AST);

        }

    }

    public function execute(Connection $conn, array $params, array $types)

    {

        return $conn->executeUpdate($this->_sqlStatements, $params, $types);

    }

}