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.commons.jci.listeners;
19
20 import java.io.File;
21
22 import org.apache.commons.jci.monitor.FilesystemAlterationObserver;
23
24 /**
25 * The most simple implemenation of an FilesystemAlterationListener.
26 *
27 * @author tcurdt
28 */
29 public class FileChangeListener extends AbstractFilesystemAlterationListener {
30
31 private boolean changed;
32
33 public boolean hasChanged() {
34 return changed;
35 }
36
37 @Override
38 public void onStart( final FilesystemAlterationObserver pObserver ) {
39 changed = false;
40 super.onStart(pObserver);
41 }
42
43 @Override
44 public void onStop( final FilesystemAlterationObserver pObserver ) {
45 super.onStop(pObserver);
46 }
47
48
49 @Override
50 public void onFileChange( final File pFile ) {
51 changed = true;
52 }
53
54
55 @Override
56 public void onFileCreate( final File pFile ) {
57 changed = true;
58 }
59
60
61 @Override
62 public void onFileDelete( final File pFile ) {
63 changed = true;
64 }
65
66
67 @Override
68 public void onDirectoryChange( final File pDir ) {
69 }
70
71 @Override
72 public void onDirectoryCreate( final File pDir ) {
73 }
74
75 @Override
76 public void onDirectoryDelete( final File pDir ) {
77 }
78
79 }