<?php
/***************************************************************************
*                                                                          *
*   (c) 2004 Vladimir V. Kalynyak, Alexey V. Vinokurov, Ilya M. Shalnev    *
*                                                                          *
* This  is  commercial  software,  only  users  who have purchased a valid *
* license  and  accept  to the terms of the  License Agreement can install *
* and use this program.                                                    *
*                                                                          *
****************************************************************************
* PLEASE READ THE FULL TEXT  OF THE SOFTWARE  LICENSE   AGREEMENT  IN  THE *
* "copyright.txt" FILE PROVIDED WITH THIS DISTRIBUTION PACKAGE.            *
****************************************************************************/


namespace Tygh\Lock\Store;


use Symfony\Component\Lock\Key;
use Tygh\Lock\StoreInterface;

/**
 * DummyStore is a dummy store.
 * Usable to disable locks mechanism.
 *
 * @package Tygh\Backend\Lock
 */
class DummyStore implements StoreInterface
{
    /**
     * @inheritDoc
     */
    public function save(Key $key)
    {
        return true;
    }

    /**
     * @inheritDoc
     */
    public function putOffExpiration(Key $key, $ttl)
    {
        return true;
    }

    /**
     * @inheritDoc
     */
    public function delete(Key $key)
    {
        return true;
    }

    /**
     * @inheritDoc
     */
    public function exists(Key $key, $owned_to_current_process = true)
    {
        return false;
    }
}