01: /*
02: * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/java/org/apache/commons/httpclient/HttpMethodRetryHandler.java,v 1.2 2004/09/14 20:11:31 olegk Exp $
03: * $Revision: 480424 $
04: * $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
05: *
06: * ====================================================================
07: *
08: * Licensed to the Apache Software Foundation (ASF) under one or more
09: * contributor license agreements. See the NOTICE file distributed with
10: * this work for additional information regarding copyright ownership.
11: * The ASF licenses this file to You under the Apache License, Version 2.0
12: * (the "License"); you may not use this file except in compliance with
13: * 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, software
18: * distributed under the License is distributed on an "AS IS" BASIS,
19: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20: * See the License for the specific language governing permissions and
21: * limitations under the License.
22: * ====================================================================
23: *
24: * This software consists of voluntary contributions made by many
25: * individuals on behalf of the Apache Software Foundation. For more
26: * information on the Apache Software Foundation, please see
27: * <http://www.apache.org/>.
28: *
29: */
30:
31: package org.apache.commons.httpclient;
32:
33: import java.io.IOException;
34:
35: /**
36: * A handler for determining if an HttpMethod 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: * @see HttpMethod#execute(HttpState, HttpConnection)
45: *
46: * @author Michael Becke
47: * @author <a href="mailto:oleg -at- ural.ru">Oleg Kalnichevski</a>
48: */
49: public interface HttpMethodRetryHandler {
50:
51: /**
52: * Determines if a method should be retried after an HttpRecoverableException
53: * occurs during execution.
54: *
55: * @param method the method being executed
56: * @param exception the exception that occurred
57: * @param executionCount the number of times this method has been
58: * unsuccessfully executed
59: *
60: * @return <code>true</code> if the method should be retried, <code>false</code>
61: * otherwise
62: */
63: boolean retryMethod(HttpMethod method, IOException exception,
64: int executionCount);
65:
66: }
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