vendor/kriswallsmith/assetic/src/Assetic/Cache/CacheInterface.php

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<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2014 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Assetic\Cache;

/**
 * Interface for a cache backend.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
interface CacheInterface
{
    /**
     * Checks if the cache has a value for a key.
     *
     * @param string $key A unique key
     *
     * @return Boolean Whether the cache has a value for this key
     */
    public function has($key);

    /**
     * Returns the value for a key.
     *
     * @param string $key A unique key
     *
     * @return string|null The value in the cache
     */
    public function get($key);

    /**
     * Sets a value in the cache.
     *
     * @param string $key   A unique key
     * @param string $value The value to cache
     */
    public function set($key, $value);

    /**
     * Removes a value from the cache.
     *
     * @param string $key A unique key
     */
    public function remove($key);
}