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doctrine2/lib/Doctrine/Query/Production/OffsetClause.php

75 lines
2.2 KiB
PHP

<?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.org>.
*/
/**
* OffsetClause = "OFFSET" integer
*
* @package Doctrine
* @subpackage Query
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Janne Vanhala <jpvanhal@cc.hut.fi>
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link http://www.phpdoctrine.org
* @since 2.0
* @version $Revision$
*/
class Doctrine_Query_Production_OffsetClause extends Doctrine_Query_Production
{
protected $_offset;
public function execute(array $params = array())
{
$this->_parser->match(Doctrine_Query_Token::T_OFFSET);
$this->_parser->match(Doctrine_Query_Token::T_INTEGER);
$this->_offset = $this->_parser->token['value'];
return $this;
}
public function buildSql()
{
// [TODO] How to deal with different DBMS here?
// The responsability to apply the limit-subquery is from
// SelectStatement, not this object's one.
return ' OFFSET ' . $this->_offset;
}
/**
* Visitor support
*
* @param object $visitor
*/
public function accept($visitor)
{
$visitor->visitOffsetClause($this);
}
/* Getters */
public function getOffset()
{
return $this->_offset;
}
}