<?php /* * Copyright 2008 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_FileCache.php"; require_once "Google_MemcacheCache.php"; /** * Abstract storage class * * @author Chris Chabot <chabotc@google.com> */ abstract class Google_Cache { /** * Retrieves the data for the given key, or false if they * key is unknown or expired * * @param String $key The key who's data to retrieve * @param boolean|int $expiration Expiration time in seconds * */ abstract function get($key, $expiration = false); /** * Store the key => $value set. The $value is serialized * by this function so can be of any type * * @param string $key Key of the data * @param string $value data */ abstract function set($key, $value); /** * Removes the key/data pair for the given $key * * @param String $key */ abstract function delete($key); }