<?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.phpdoctrine.com>.
 */
/**
 * Doctrine_Db_Statement
 *
 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
 * @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_Db_Statement extends PDOStatement
{
    protected $dbh;

    protected $querySequence;

    protected $baseSequence;

    protected $executed = false;

    protected function __construct($dbh)
    {
        $this->dbh = $dbh;
        $this->baseSequence  = $this->querySequence = $this->dbh->getQuerySequence();
    }

    public function getQuerySequence()
    {
        return $this->querySequence;
    }
    public function getBaseSequence()
    {
        return $this->baseSequence;
    }
    public function getQuery()
    {
        return $this->queryString;
    }
    public function isExecuted($executed = null)
    {
        if ($executed === null)
            return $this->executed;

        $this->executed = (bool) $executed;
    }

    public function execute(array $params = null)
    {
        $event = new Doctrine_Db_Event($this, Doctrine_Db_Event::EXECUTE, $this->queryString);

        $this->dbh->getListener()->onPreExecute($event);

        $ret = parent::execute($params);

        $this->dbh->getListener()->onExecute($event);

        return $this;
    }
}