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Java > Open Source Codes > org > apache > tools > ant > util > Retryable


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 package org.apache.tools.ant.util;
19
20 import java.io.IOException JavaDoc;
21
22
23 /**
24  * Simple interface for executing a piece of code. Used for writing anonymous inner
25  * classes in FTP task for retry-on-IOException behaviour.
26  *
27  * @see RetryHandler
28  */
29 public interface Retryable {
30     /** The value to use to never give up. */
31     int RETRY_FOREVER = -1;
32     /**
33      * Called to execute the code.
34      * @throws IOException if there is a problem.
35      */
36     void execute() throws IOException JavaDoc;
37
38 }
39
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