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1 /*
2  * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/ConnectionReuseStrategy.java $
3  * $Revision: 496070 $
4  * $Date: 2007-01-14 04:18:34 -0800 (Sun, 14 Jan 2007) $
5  *
6  * ====================================================================
7  * Licensed to the Apache Software Foundation (ASF) under one
8  * or more contributor license agreements.  See the NOTICE file
9  * distributed with this work for additional information
10  * regarding copyright ownership.  The ASF licenses this file
11  * to you under the Apache License, Version 2.0 (the
12  * "License"); you may not use this file except in compliance
13  * with the License.  You may obtain a copy of the License at
14  *
15  *   http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing,
18  * software distributed under the License is distributed on an
19  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20  * KIND, either express or implied.  See the License for the
21  * specific language governing permissions and limitations
22  * under the License.
23  * ====================================================================
24  *
25  * This software consists of voluntary contributions made by many
26  * individuals on behalf of the Apache Software Foundation.  For more
27  * information on the Apache Software Foundation, please see
28  * <http://www.apache.org/>.
29  *
30  */
31 
32 package org.apache.http;
33 
34 import org.apache.http.protocol.HttpContext;
35 
36 /**
37  * Interface for deciding whether a connection should be kept alive.
38  *
39  * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
40  *
41  *
42  * <!-- empty lines above to avoid 'svn diff' context problems -->
43  * @version $Revision: 496070 $
44  *
45  * @since 4.0
46  *
47  * @deprecated Please use {@link java.net.URL#openConnection} instead.
48  *     Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a>
49  *     for further details.
50  */
51 @Deprecated
52 public interface ConnectionReuseStrategy {
53 
54     /**
55      * Decides whether a connection can be kept open after a request.
56      * If this method returns <code>false</code>, the caller MUST
57      * close the connection to correctly implement the HTTP protocol.
58      * If it returns <code>true</code>, the caller SHOULD attempt to
59      * keep the connection open for reuse with another request.
60      * <br/>
61      * One can use the HTTP context to retrieve additional objects that
62      * may be relevant for the keep-alive strategy: the actual HTTP
63      * connection, the original HTTP request, target host if known,
64      * number of times the connection has been reused already and so on.
65      * <br/>
66      * If the connection is already closed, <code>false</code> is returned.
67      * The stale connection check MUST NOT be triggered by a
68      * connection reuse strategy.
69      *
70      * @param response
71      *          The last response received over that connection.
72      * @param context   the context in which the connection is being
73      *          used.
74      *
75      * @return <code>true</code> if the connection is allowed to be reused, or
76      *         <code>false</code> if it MUST NOT be reused
77      */
keepAlive(HttpResponse response, HttpContext context)78     boolean keepAlive(HttpResponse response, HttpContext context);
79 
80 }
81