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    }
127