<?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 <[email protected]>
*/
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);
}
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