| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * 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. |
| */ |
| package org.apache.cocoon.caching; |
| |
| import java.io.Serializable; |
| |
| import org.apache.avalon.framework.component.Component; |
| import org.apache.cocoon.ProcessingException; |
| |
| /** |
| * This is the Cocoon cache. This component is responsible for storing |
| * and retrieving cached responses. It can be used to monitor the cache |
| * or to investigate which responses are cached etc. |
| * This interface will grow! |
| * |
| * @since 2.1 |
| * @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a> |
| * @version CVS $Id: Cache.java,v 1.5 2004/03/05 13:02:45 bdelacretaz Exp $ |
| */ |
| public interface Cache |
| extends Component { |
| |
| /** The Avalon Role **/ |
| String ROLE = Cache.class.getName(); |
| |
| /** |
| * Store a cached response |
| * @param key the key used by the caching algorithm to identify the |
| * request |
| * @param response the cached response |
| */ |
| void store(Serializable key, |
| CachedResponse response) |
| throws ProcessingException; |
| |
| /** |
| * Get a cached response. |
| * If it is not available <code>null</code> is returned. |
| * @param key the key used by the caching algorithm to identify the |
| * request |
| */ |
| CachedResponse get(Serializable key); |
| |
| /** |
| * Remove a cached response. |
| * If it is not available no operation is performed. |
| * @param key the key used by the caching algorithm to identify the |
| * request |
| */ |
| void remove(Serializable key); |
| |
| /** |
| * clear cache of all cached responses |
| */ |
| void clear(); |
| |
| /** |
| * See if a response is cached under this key. |
| */ |
| boolean containsKey(Serializable key); |
| } |