<?php

/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2016 (original work) Open Assessment Technologies SA ;
 */

/**
 * @author Jean-Sébastien Conan <jean-sebastien.conan@vesperiagroup.com>
 */

namespace oat\taoTests\models\runner\time;

/**
 * Interface TimeStorage
 *
 * Describes the API needed to load and store the Time API data
 *
 * @package oat\taoTests\models\runner\time
 */
interface TimeStorage
{
    /**
     * Stores the timer data
     * @param string $data
     * @return TimeStorage
     * @throws \Exception
     */
    public function store($data);

    /**
     * Loads the timer data from the storage
     * @return string
     * @throws \Exception
     */
    public function load();

    /**
     * @return bool
     * @throws \Exception
     */
    public function delete();
}