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<?php
/*
* $Id: Interface.php 6821 2009-11-30 17:32:21Z 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>.
*/
/**
* Doctrine cache driver interface
*
* @package Doctrine
* @subpackage Cache
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision: 6821 $
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Jonathan H. Wage <jonwage@gmail.com>
*/
interface Doctrine_Cache_Interface
{
/**
* Fetch a cache record from this cache driver instance
*
* @param string $id cache id
* @param boolean $testCacheValidity if set to false, the cache validity won't be tested
* @return mixed Returns either the cached data or false
*/
public function fetch($id, $testCacheValidity = true);
/**
* Test if a cache record exists for the passed id
*
* @param string $id cache id
* @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
*/
public function contains($id);
/**
* Save a cache record and add the key to the index of cached keys
*
* @param string $id cache id
* @param string $data data to cache
* @param int $lifeTime if != false, set a specific lifetime for this cache record (null => infinite lifeTime)
* @param boolean $saveKey Whether or not to save the key in the cache key index
* @return boolean true if no problem
*/
public function save($id, $data, $lifeTime = false, $saveKey = true);
/**
* Remove a cache record
*
* @param string $id cache id
* @return boolean true if no problem
*/
public function delete($id);
}
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