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<?php
namespace PhpConsole\Storage;
use PhpConsole\Storage;
/**
* Abstract class for key-value stores with key auto-expire support
*
* @package PhpConsole
* @version 3.1
* @link http://consle.com
* @author Sergey Barbushin http://linkedin.com/in/barbushin
* @copyright © Sergey Barbushin, 2011-2013. All rights reserved.
* @license http://www.opensource.org/licenses/BSD-3-Clause "The BSD 3-Clause License"
* @codeCoverageIgnore
*/
abstract class ExpiringKeyValue extends Storage {
/**
* Save data by auto-expire key
* @param $key
* @param string $data
* @param int $expire
*/
abstract protected function set($key, $data, $expire);
/**
* Get data by key if not expired
* @param $key
* @return string
*/
abstract protected function get($key);
/**
* Remove key in store
* @param $key
* @return mixed
*/
abstract protected function delete($key);
/**
* Get postponed data from storage and delete
* @param string $key
* @return string
*/
public function pop($key) {
$data = $this->get($key);
if($data) {
$this->delete($key);
}
return $data;
}
/**
* Save postponed data to storage
* @param string $key
* @param string $data
*/
public function push($key, $data) {
$this->set($key, $data, $this->keyLifetime);
}
}