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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation\SessionStorage;
/**
* SessionStorageInterface.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @api
*/
interface SessionStorageInterface
{
/**
* Starts the session.
*
* @api
*/
function start();
/**
* Returns the session ID
*
* @return mixed The session ID
*
* @throws \RuntimeException If the session was not started yet
*
* @api
*/
function getId();
/**
* Reads data from this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
*
* @return mixed Data associated with the key
*
* @throws \RuntimeException If an error occurs while reading data from this storage
*
* @api
*/
function read($key);
/**
* Removes data from this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
*
* @return mixed Data associated with the key
*
* @throws \RuntimeException If an error occurs while removing data from this storage
*
* @api
*/
function remove($key);
/**
* Writes data to this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
* @param mixed $data Data associated with your key
*
* @throws \RuntimeException If an error occurs while writing to this storage
*
* @api
*/
function write($key, $data);
/**
* Regenerates id that represents this storage.
*
* @param Boolean $destroy Destroy session when regenerating?
*
* @return Boolean True if session regenerated, false if error
*
* @throws \RuntimeException If an error occurs while regenerating this storage
*
* @api
*/
function regenerate($destroy = false);
}