001 /* TargetedNotificaton.java -- Wrapper for a notification and identifier pair.
002 Copyright (C) 2008 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038 package javax.management.remote;
039
040 import java.io.Serializable;
041
042 import javax.management.Notification;
043
044 /**
045 * Wraps a notification with an identifier that specifies
046 * the listener which received it.
047 *
048 * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
049 * @since 1.5
050 */
051 public class TargetedNotification
052 implements Serializable
053 {
054
055 /**
056 * Compatible with JDK 1.6
057 */
058 private static final long serialVersionUID = 7676132089779300926L;
059
060 /**
061 * The notification that was recieved by the listener.
062 */
063 private Notification notif;
064
065 /**
066 * The identifier for the listener that received the notification;
067 */
068 private Integer id;
069
070 /**
071 * Constructs a new {@link TargetedNotification} which connects
072 * the supplied notification with the specified identifier. The
073 * identifier matches one of those returned by a previous call
074 * to add a new notification listener.
075 *
076 * @param notif the notification.
077 * @param id the identifier of the listener that received the
078 * notification.
079 * @throws IllegalArgumentException if either argument is
080 * <code>null</code>.
081 */
082 public TargetedNotification(Notification notif, Integer id)
083 {
084 if (notif == null)
085 throw new IllegalArgumentException("The notification is null.");
086 if (id == null)
087 throw new IllegalArgumentException("The identifier is null.");
088 this.notif = notif;
089 this.id = id;
090 }
091
092 /**
093 * Returns the notification.
094 *
095 * @return the notification.
096 */
097 public Notification getNotification()
098 {
099 return notif;
100 }
101
102 /**
103 * Returns the identifier for the listener
104 * which received the notification.
105 *
106 * @return the identifier.
107 */
108 public Integer getListenerID()
109 {
110 return id;
111 }
112
113 /**
114 * Returns a textual representation of the object.
115 *
116 * @return a textual representation.
117 */
118 public String toString()
119 {
120 return getClass().getName() +
121 "[notif=" + notif +
122 ",id=" + id +
123 "]";
124 }
125
126 }