01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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;
21:
22: /**
23: * Simple interface for executing a piece of code. Used for writing anonymous inner
24: * classes in FTP task for retry-on-IOException behaviour.
25: *
26: * @see RetryHandler
27: */
28: public interface Retryable {
29: /** The value to use to never give up. */
30: int RETRY_FOREVER = -1;
31:
32: /**
33: * Called to execute the code.
34: * @throws IOException if there is a problem.
35: */
36: void execute() throws IOException;
37:
38: }
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