Source code: org/apache/http/protocol/HttpRequestRetryHandler.java
1 /*
2 * $HeadURL: https://svn.apache.org/repos/asf/jakarta/httpcomponents/httpcore/tags/4.0-alpha2/src/java/org/apache/http/protocol/HttpRequestRetryHandler.java $
3 * $Revision: 376961 $
4 * $Date: 2006-02-11 11:32:50 +0100 (Sat, 11 Feb 2006) $
5 *
6 * ====================================================================
7 *
8 * Copyright 1999-2006 The Apache Software Foundation
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 * ====================================================================
22 *
23 * This software consists of voluntary contributions made by many
24 * individuals on behalf of the Apache Software Foundation. For more
25 * information on the Apache Software Foundation, please see
26 * <http://www.apache.org/>.
27 *
28 */
29
30 package org.apache.http.protocol;
31
32 import java.io.IOException;
33
34
35 /**
36 * A handler for determining if an HttpRequest should be retried after a
37 * recoverable exception during execution.
38 *
39 * <p>
40 * Classes implementing this interface must synchronize access to shared
41 * data as methods of this interfrace may be executed from multiple threads
42 * </p>
43 *
44 * @author Michael Becke
45 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
46 */
47 public interface HttpRequestRetryHandler {
48
49 /**
50 * Determines if a method should be retried after an IOException
51 * occurs during execution.
52 *
53 * @param exception the exception that occurred
54 * @param executionCount the number of times this method has been
55 * unsuccessfully executed
56 * @param context the context for the request execution
57 *
58 * @return <code>true</code> if the method should be retried, <code>false</code>
59 * otherwise
60 */
61 boolean retryRequest(IOException exception, int executionCount, HttpContext context);
62
63 }