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 */ 017package org.apache.commons.vfs2; 018 019/** 020 * FileMonitor interface. 021 */ 022public interface FileMonitor { 023 /** 024 * Adds a file to be monitored. 025 * 026 * @param file The FileObject to monitor. 027 */ 028 void addFile(final FileObject file); 029 030 /** 031 * Removes a file from being monitored. 032 * 033 * @param file The FileObject to stop monitoring. 034 */ 035 void removeFile(final FileObject file); 036}