libjava/classpath/javax/management/MBeanServerNotification.java

/* MBeanServerNotification.java -- The registration notification.
   Copyright (C) 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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General Public License for more details.

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02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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package javax.management;

/**
 * The notification emitted by a management server on a registration
 * or de-registration event.  Events are emitted via the delegate
 * management bean of the server.  Other objects can listen for
 * such events by registering their interest with the delegate
 * bean.  The bean can be obtained via the {@link ObjectName}
 * <code>JMImplementation:type=MBeanServerDelegate</code>.
 *
 * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
 * @since 1.5
 */
public class MBeanServerNotification
  extends Notification
{

  /**
   * Compatible with JDK 1.5
   */
  private static final long serialVersionUID = 2876477500475969677L;

  /**
   * Notification type for the registration event.
   */
  public static final String REGISTRATION_NOTIFICATION = "JMX.mbean.registered";

  /**
   * Notification type for the de-registration event.
   */
  public static final String UNREGISTRATION_NOTIFICATION = "JMX.mbean.unregistered";

  /**
   * The name of the bean which forms the subject of this notification.
   */
  private ObjectName objectName;

  /**
   * Constructs a new {@link MBeanServerNotification} of the specified
   * type for an event relating to the supplied bean, with the given
   * source and sequence number.
   *
   * @param type the type of notification (registration or de-registration).
   * @param source the source of the notification.
   * @param seqNo the sequence number of this notification, used to order
   *              multiple such notifications.
   * @param name the name of the bean concerned by this event.
   */
  public MBeanServerNotification(String type, Object source, long seqNo,
                                 ObjectName name)
  {
    super(type, source, seqNo);
    objectName = name;
  }

  /**
   * Returns the name of the bean this notification concerns.
   *
   * @return the name of the bean.
   */
  public ObjectName getMBeanName()
  {
    return objectName;
  }

}