001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.jci.monitor; 019 020 import java.io.File; 021 022 /** 023 * A listener that receives events of filesystem modifications. 024 * The observer basically represents the source of the events. 025 * The file root and its state. (see FilesystemAlterationObserver) 026 * 027 * @author tcurdt 028 */ 029 public interface FilesystemAlterationListener { 030 031 void onStart( final FilesystemAlterationObserver pObserver ); 032 void onFileCreate( final File pFile ); 033 void onFileChange( final File pFile ); 034 void onFileDelete( final File pFile ); 035 void onDirectoryCreate( final File pDir ); 036 void onDirectoryChange( final File pDir ); 037 void onDirectoryDelete( final File pDir ); 038 void onStop( final FilesystemAlterationObserver pObserver ); 039 }