1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.http.client.cache;
28
29 import org.apache.http.HttpHost;
30 import org.apache.http.HttpRequest;
31 import org.apache.http.HttpResponse;
32
33 /**
34 * Given a particular HttpRequest, flush any cache entries that this request
35 * would invalidate.
36 *
37 * @since 4.3
38 */
39 public interface HttpCacheInvalidator {
40
41 /**
42 * Remove cache entries from the cache that are no longer fresh or have been
43 * invalidated in some way.
44 *
45 * @param host
46 * The backend host we are talking to
47 * @param req
48 * The HttpRequest to that host
49 */
50 void flushInvalidatedCacheEntries(HttpHost host, HttpRequest req);
51
52 /**
53 * Flushes entries that were invalidated by the given response received for
54 * the given host/request pair.
55 */
56 void flushInvalidatedCacheEntries(HttpHost host, HttpRequest request, HttpResponse response);
57
58 }