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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Robin McCorkell <robin@mccorkell.me.uk>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Memcache;
abstract class Cache implements \ArrayAccess, \OCP\ICache {
/**
* @var string $prefix
*/
protected $prefix;
/**
* @param string $prefix
*/
public function __construct($prefix = '') {
$this->prefix = $prefix;
}
/**
* @return string Prefix used for caching purposes
*/
public function getPrefix() {
return $this->prefix;
}
/**
* @param string $key
* @return mixed
*/
abstract public function get($key);
/**
* @param string $key
* @param mixed $value
* @param int $ttl
* @return mixed
*/
abstract public function set($key, $value, $ttl = 0);
/**
* @param string $key
* @return mixed
*/
abstract public function hasKey($key);
/**
* @param string $key
* @return mixed
*/
abstract public function remove($key);
/**
* @param string $prefix
* @return mixed
*/
abstract public function clear($prefix = '');
//implement the ArrayAccess interface
public function offsetExists($offset) {
return $this->hasKey($offset);
}
public function offsetSet($offset, $value) {
$this->set($offset, $value);
}
public function offsetGet($offset) {
return $this->get($offset);
}
public function offsetUnset($offset) {
$this->remove($offset);
}
}