78 lines
1.4 KiB
PHP
78 lines
1.4 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 implements \ArrayAccess {
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/**
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* @var string $prefix
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*/
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protected $prefix;
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/**
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* @param string $prefix
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*/
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public function __construct($prefix = '') {
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$this->prefix = \OC_Util::getInstanceId() . '/' . $prefix;
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}
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public function getPrefix() {
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return $this->prefix;
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}
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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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//implement the ArrayAccess interface
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public function offsetExists($offset) {
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return $this->hasKey($offset);
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}
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public function offsetSet($offset, $value) {
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$this->set($offset, $value);
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}
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public function offsetGet($offset) {
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return $this->get($offset);
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}
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public function offsetUnset($offset) {
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$this->remove($offset);
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}
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}
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