<?php
/*
 * Copyright 2014 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

require_once "Google/Cache/Abstract.php";
require_once "Google/Cache/Exception.php";

/**
 * A blank storage class, for cases where caching is not
 * required.
 */
class Google_Cache_Null extends Google_Cache_Abstract {
    public function __construct(Google_Client $client) {

    }

    /**
     * @inheritDoc
     */
    public function get($key, $expiration = false) {
        return false;
    }

    /**
     * @inheritDoc
     */
    public function set($key, $value) {
        // Nop.
    }

    /**
     * @inheritDoc
     * @param String $key
     */
    public function delete($key) {
        // Nop.
    }
}