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 18 /* 19 */ 20 package org.apache.log4j.plugins; 21 22 import java.util.EventListener; 23 24 25 /** 26 * PluginListeners are notified when plugins are started or stopped 27 * by the PluginRegistry. 28 * 29 * @author Paul Smith (psmith@apache.org) 30 */ 31 public interface PluginListener extends EventListener { 32 /** 33 * Notification that plugin has started. 34 * @param e event 35 */ 36 void pluginStarted(PluginEvent e); 37 38 /** 39 * Notification that plugin has stopped. 40 * @param e event 41 */ 42 void pluginStopped(PluginEvent e); 43 }