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doctrine2/lib/Doctrine/Common/Cache/MemcacheCache.php

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<?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\Common\Cache;
use \Memcache;
/**
* Memcache cache driver.
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 2.0
* @version $Revision: 3938 $
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author David Abdemoulaie <dave@hobodave.com>
*/
class MemcacheCache extends AbstractCache
{
/**
* @var Memcache
*/
private $_memcache;
/**
* Sets the memcache instance to use.
*
* @param Memcache $memcache
*/
public function setMemcache(Memcache $memcache)
{
$this->_memcache = $memcache;
}
/**
* Gets the memcache instance used by the cache.
*
* @return Memcache
*/
public function getMemcache()
{
return $this->_memcache;
}
/**
* {@inheritdoc}
*/
public function getIds()
{
$keys = array();
$allSlabs = $this->_memcache->getExtendedStats('slabs');
foreach ($allSlabs as $server => $slabs) {
if (is_array($slabs)) {
foreach (array_keys($slabs) as $slabId) {
$dump = $this->_memcache->getExtendedStats('cachedump', (int) $slabId);
if ($dump) {
foreach ($dump as $entries) {
if ($entries) {
$keys = array_merge($keys, array_keys($entries));
}
}
}
}
}
}
return $keys;
}
/**
* {@inheritdoc}
*/
protected function _doFetch($id)
{
return $this->_memcache->get($id);
}
/**
* {@inheritdoc}
*/
protected function _doContains($id)
{
return (bool) $this->_memcache->get($id);
}
/**
* {@inheritdoc}
*/
protected function _doSave($id, $data, $lifeTime = 0)
{
return $this->_memcache->set($id, $data, 0, (int) $lifeTime);
}
/**
* {@inheritdoc}
*/
protected function _doDelete($id)
{
return $this->_memcache->delete($id);
}
}