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 }