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.vfs2;
18
19 /**
20 * FileMonitor interface.
21 */
22 public interface FileMonitor {
23
24 /**
25 * Adds a file to be monitored.
26 *
27 * @param file The FileObject to monitor.
28 */
29 void addFile(final FileObject file);
30
31 /**
32 * Removes a file from being monitored.
33 *
34 * @param file The FileObject to stop monitoring.
35 */
36 void removeFile(final FileObject file);
37 }