<?php
/**
 * KumbiaPHP web & app Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://wiki.kumbiaphp.com/Licencia
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to hide@address.com so we can send you a copy immediately.
 *
 * interfaz que implementa un componente de cacheo
 * 
 * @category   Kumbia
 * @package    Cache 
 * @copyright  Copyright (c) 2005-2009 Kumbia Team (http://www.kumbiaphp.com)
 * @license    http://wiki.kumbiaphp.com/Licencia     New BSD License
 */
interface CacheInterface 
{
	/**
	 * Carga un elemento cacheado
	 *
	 * @param string $id
	 * @param string $group
	 * @return mixed
	 */
	public function get($id, $group);
	/**
	 * Guarda un elemento en la cache con nombre $id y valor $value
	 *
	 * @param string $id
	 * @param string $group
	 * @param mixed $value
	 * @param int $lifetime tiempo de vida en forma timestamp de unix
	 * @return boolean
	 */
	public function save($id, $group, $value, $lifetime);
	/**
	 * Limpia la cache
	 *
	 * @param string $group
	 * @return boolean
	 */
	public function clean($group=false);
	/**
	 * Elimina un elemento de la cache
	 *
	 * @param string $id
	 * @param string $group
	 * @return string
	 */
	public function remove($id, $group);
}