/interpreter/tags/at2dist041108/src/edu/vub/at/actors/eventloops/Event.java
Java | 67 lines | 15 code | 8 blank | 44 comment | 0 complexity | 6ff39fe110b3b06e6a9a0c042fa93681 MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * Event.java created on 27-dec-2006 at 15:37:27 4 * (c) Programming Technology Lab, 2006 - 2007 5 * Authors: Tom Van Cutsem & Stijn Mostinckx 6 * 7 * Permission is hereby granted, free of charge, to any person 8 * obtaining a copy of this software and associated documentation 9 * files (the "Software"), to deal in the Software without 10 * restriction, including without limitation the rights to use, 11 * copy, modify, merge, publish, distribute, sublicense, and/or 12 * sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following 14 * conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 */ 28package edu.vub.at.actors.eventloops; 29 30import java.io.Serializable; 31 32/** 33 * An Event object is the main communication channel between different event loops. 34 * Events are the only kind of objects scheduled in event queues of the event loops. 35 * 36 * @author tvcutsem 37 */ 38public abstract class Event implements Serializable { 39 40 /** 41 * For debugging purposes only. 42 */ 43 private final String description_; 44 45 /** Default Constructor */ 46 public Event() { 47 description_ = "anonymous event: " + this; 48 } 49 50 /** Constructor taking a descriptive String for debugging purposes */ 51 public Event(String description) { 52 description_ = "event: " + description; 53 } 54 55 /** 56 * This method <i>may</i> be invoked by the receiving event loop such that the 57 * event can process itself. 58 * 59 * @param owner the object designated by the receiving event loop to be the owner of this event. 60 */ 61 public abstract void process(Object owner); 62 63 public String toString() { 64 return description_; 65 } 66 67}