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 package org.apache.commons.vfs;
18
19 /***
20 * Listens for changes to a file.
21 *
22 * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
23 * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
24 */
25 public interface FileListener
26 {
27 /***
28 * Called when a file is created.
29 */
30 void fileCreated(FileChangeEvent event) throws Exception;
31
32 /***
33 * Called when a file is deleted.
34 */
35 void fileDeleted(FileChangeEvent event) throws Exception;
36
37 /***
38 * Called when a file is changed.<br />
39 * This will only happen if you monitor the file using {@link FileMonitor}.
40 */
41 void fileChanged(FileChangeEvent event) throws Exception;
42 }