001/** 002 * Copyright 2003-2005 Arthur van Hoff, Rick Blair 003 * 004 * Licensed to the Apache Software Foundation (ASF) under one or more 005 * contributor license agreements. See the NOTICE file distributed with 006 * this work for additional information regarding copyright ownership. 007 * The ASF licenses this file to You under the Apache License, Version 2.0 008 * (the "License"); you may not use this file except in compliance with 009 * the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019package org.apache.activemq.jmdns; 020 021import java.util.EventListener; 022 023/** 024 * Listener for service updates. 025 * 026 * @version %I%, %G% 027 * @author Arthur van Hoff, Werner Randelshofer 028 */ 029public interface ServiceListener extends EventListener 030{ 031 /** 032 * A service has been added. 033 * 034 * @param event The ServiceEvent providing the name and fully qualified type 035 * of the service. 036 */ 037 void serviceAdded(ServiceEvent event); 038 039 /** 040 * A service has been removed. 041 * 042 * @param event The ServiceEvent providing the name and fully qualified type 043 * of the service. 044 */ 045 void serviceRemoved(ServiceEvent event); 046 047 /** 048 * A service has been resolved. Its details are now available in the 049 * ServiceInfo record. 050 * 051 * @param event The ServiceEvent providing the name, the fully qualified 052 * type of the service, and the service info record, or null if the service 053 * could not be resolved. 054 */ 055 void serviceResolved(ServiceEvent event); 056}