100 lines
3.8 KiB
PHP
100 lines
3.8 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Cache
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* @subpackage Zend_Cache_Backend
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Interface.php 20096 2010-01-06 02:05:09Z bkarwin $
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*/
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/**
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* @package Zend_Cache
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* @subpackage Zend_Cache_Backend
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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interface Zend_Cache_Backend_Interface
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{
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/**
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* Set the frontend directives
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*
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* @param array $directives assoc of directives
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*/
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public function setDirectives($directives);
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/**
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* Test if a cache is available for the given id and (if yes) return it (false else)
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*
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* Note : return value is always "string" (unserialization is done by the core not by the backend)
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*
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* @param string $id Cache id
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* @param boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
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* @return string|false cached datas
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*/
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public function load($id, $doNotTestCacheValidity = false);
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/**
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* Test if a cache is available or not (for the given id)
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*
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* @param string $id cache id
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* @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
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*/
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public function test($id);
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/**
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* Save some string datas into a cache record
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*
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* Note : $data is always "string" (serialization is done by the
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* core not by the backend)
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*
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* @param string $data Datas to cache
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* @param string $id Cache id
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* @param array $tags Array of strings, the cache record will be tagged by each string entry
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* @param int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
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* @return boolean true if no problem
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*/
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public function save($data, $id, $tags = array(), $specificLifetime = false);
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/**
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* Remove a cache record
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*
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* @param string $id Cache id
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* @return boolean True if no problem
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*/
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public function remove($id);
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/**
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* Clean some cache records
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*
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* Available modes are :
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* Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used)
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* Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used)
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* Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags
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* ($tags can be an array of strings or a single string)
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* Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
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* ($tags can be an array of strings or a single string)
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* Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
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* ($tags can be an array of strings or a single string)
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*
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* @param string $mode Clean mode
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* @param array $tags Array of tags
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* @return boolean true if no problem
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*/
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public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array());
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}
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