001 /* 002 * Copyright 2005 Stephen J. McConnell. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 013 * implied. 014 * 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019 package net.dpml.util; 020 021 import java.util.EventObject; 022 import java.util.EventListener; 023 024 /** 025 * Interface implemented by objects that maintain a collection of event listeners 026 * and support for operational event propergation. 027 * 028 * @author <a href="http://www.dpml.net">Digital Product Meta Library</a> 029 * @version 1.0.3 030 */ 031 public interface EventHandler 032 { 033 /** 034 * Return the associated event listeners. 035 * @return the event listeners 036 */ 037 EventListener[] getEventListeners(); 038 039 /** 040 * Process the supplied event. 041 * @param event the event to be processed 042 */ 043 void processEvent( EventObject event ); 044 }