toomanylistenersexception.java

来自「《移动Agent技术》一书的所有章节源代码。」· Java 代码 · 共 66 行

/*
 * @(#)TooManyListenersException.java	1.1 96/10/10
 *
 * Copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */

package java.util;

/**
 * <p>
 * The <code> TooManyListenersException </code> Exception is used as part of
 * the Java Event model to annotate and implement a unicast special case of
 * a multicast Event Source.
 * </p>
 * <p>
 * The presence of a <code> throws TooManyListenersException </code> clause
 * on any given concrete implementation of the normally multicast semantic
 * <italic> void add &lt EventListenerType &gt () </italic> event listener
 * registration pattern is used to annotate that interface as implementing
 * a unicast Listener special case, that is, that one and only one Listener
 * may be registered on the particular event listener source concurrently.
 * </p>
 *
 * @see java.util.EventObject
 * @see java.util.EventListener
 * 
 * @version 1.1 96/10/10
 * @author Laurence P. G. Cable
 */

public class TooManyListenersException extends Exception {

    /**
     * Constructs a TooManyListenersException with no detail message.
     * A detail message is a String that describes this particular exception.
     */

    public TooManyListenersException() {
	super();
    }

    /**
     * Constructs a TooManyListenersException with the specified detail message.
     * A detail message is a String that describes this particular exception.
     * @param s the detail message
     */

    public TooManyListenersException(String s) {
	super(s);
    }
}