73 lines
1.3 KiB
PHP
73 lines
1.3 KiB
PHP
<?php
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/**
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* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Memcache;
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abstract class Cache {
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/**
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* get a cache instance
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*
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* @param bool $global
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* @return Cache
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*/
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static function create($global = false) {
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if (XCache::isAvailable()) {
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return new XCache($global);
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} elseif (APC::isAvailable()) {
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return new APC($global);
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} elseif (Memcached::isAvailable()) {
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return new Memcached($global);
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} else {
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return null;
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}
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}
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/**
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* @param bool $global
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*/
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abstract public function __construct($global);
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/**
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* @param string $key
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* @return mixed
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*/
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abstract public function get($key);
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/**
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* @param string $key
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* @param mixed $value
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* @param int $ttl
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* @return mixed
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*/
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abstract public function set($key, $value, $ttl = 0);
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/**
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* @param string $key
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* @return mixed
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*/
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abstract public function hasKey($key);
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/**
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* @param string $key
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* @return mixed
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*/
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abstract public function remove($key);
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/**
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* @param string $prefix
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* @return mixed
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*/
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abstract public function clear($prefix = '');
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/**
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* @return bool
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*/
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static public function isAvailable() {
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return XCache::isAvailable() || APC::isAvailable() || Memcached::isAvailable();
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}
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}
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