Examples of javax.management.AttributeChangeNotification

javax.management.AttributeChangeNotification
This is the mandated object for sending notifications of attribute changes. The MBean may also send other types of notifications. The MBean must implement the {@link javax.management.NotificationBroadcaster} interface to sendthis notification.
The following information is provided in addition to the that provided by {@link javax.management.Notification Notification}. The attribute's {@link #getAttributeName() name}, {@link #getAttributeType() type}, {@link #getOldValue() old value} and{@link #getNewValue() new value}.
The notification type is "jmx.attribute.change", defined in the static string {@link #ATTRIBUTE_CHANGE}. @see javax.management.AttributeChangeNotificationFilter @author Adrian Brock. @version $Revision: 1.3 $
Revisions:
20020710 Adrian Brock:
- Serialization

                    };
                    manager.start();
                    while(true) {
                        final Notification n = queue.poll(10,TimeUnit.SECONDS);
                        if (n == null) break;
                        final AttributeChangeNotification at = 
                                (AttributeChangeNotification) n;
                        if (RUNNING == ScanState.valueOf((String)at.getNewValue()))
                            break;
                        else {
                            System.err.println("New state: "+(String)at.getNewValue()
                            +" isn't "+RUNNING);
                        }
                    }
                    assertContained(EnumSet.of(SCHEDULED,RUNNING,COMPLETED),
                            proxy.getState());

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                    notification.getType());
            assertEquals(AttributeChangeNotification.class,
                    notification.getClass());
            assertEquals(ScanManager.SCAN_MANAGER_NAME,
                    notification.getSource());
            AttributeChangeNotification acn =
                    (AttributeChangeNotification)notification;
            assertEquals("State",acn.getAttributeName());
            assertEquals(ScanState.class.getName(),acn.getAttributeType());
            assertEquals(before,ScanState.valueOf((String)acn.getOldValue()));
            assertContained(after,ScanState.valueOf((String)acn.getNewValue()));
            emitter.removeNotificationListener(listener,filter,handback);
        } finally {
            try {
                op.cancel();
            } catch (Exception x) {

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      public void handleNotification(Notification msg, Object handback)
      {
         if (msg instanceof AttributeChangeNotification)
         {
            AttributeChangeNotification change = (AttributeChangeNotification) msg;
            String attrName = change.getAttributeName();
            Object newValue = change.getNewValue();
            if ("State".equals(attrName) && newValue != null && newValue instanceof Integer)
            {
               notifications.add((Integer) newValue);
            }
         }

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     * @throws RuntimeOperationsException
     */
    public void sendAttributeChangeNotification(Attribute oldAttr, Attribute newAttr) throws MBeanException,
            RuntimeOperationsException {
        if (!oldAttr.equals(newAttr)) {
            AttributeChangeNotification notification = new AttributeChangeNotification(objectName, 1, ((new Date())
                    .getTime()), "AttributeChange", oldAttr.getName(), (((newAttr.getValue()).getClass()).toString()),
                    oldAttr.getValue(), newAttr.getValue());
            sendAttributeChangeNotification(notification);
        }
    }

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    public void instrumentUpdated(Instrument inst) {
    }


    public void updateInstrument(Instrument inst) {
            String name = inst.getName().toString();
            Notification n = new AttributeChangeNotification(this, 
                    sequenceNumber ++, 
                    System.currentTimeMillis(),
                    name + " updated",
                    name,
                    inst.getTypeString(),

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  public synchronized void setStatus(String newStatus) 
  {// based on http://download.oracle.com/javase/1.5.0/docs/guide/jmx/tutorial/essential.html#wp1053200
    String oldStatus = currentStatus;
    currentStatus=newStatus;
       Notification n = 
              new AttributeChangeNotification(this, 
                sequenceNumber++, 
                System.currentTimeMillis(), 
                "New status", 
                "Status", 
                "String",

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    public void instrumentUpdated(Instrument inst) {
    }


    public void updateInstrument(Instrument inst) {
            String name = inst.getName().toString();
            Notification n = new AttributeChangeNotification(this, 
                    sequenceNumber ++, 
                    System.currentTimeMillis(),
                    name + " updated",
                    name,
                    inst.getTypeString(),

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    public void instrumentUpdated(Instrument inst) {
    }


    public void updateInstrument(Instrument inst) {
            String name = inst.getName().toString();
            Notification n = new AttributeChangeNotification(this, 
                    sequenceNumber ++, 
                    System.currentTimeMillis(),
                    name + " updated",
                    name,
                    inst.getTypeString(),

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  public synchronized void setStatus(String newStatus) 
  {// based on http://download.oracle.com/javase/1.5.0/docs/guide/jmx/tutorial/essential.html#wp1053200
    String oldStatus = currentStatus;
    currentStatus=newStatus;
       Notification n = 
              new AttributeChangeNotification(this, 
                sequenceNumber++, 
                System.currentTimeMillis(), 
                "New status", 
                "Status", 
                "String",

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  public synchronized void setStatus(String newStatus) 
  {// based on http://download.oracle.com/javase/1.5.0/docs/guide/jmx/tutorial/essential.html#wp1053200
    String oldStatus = currentStatus;
    currentStatus=newStatus;
       Notification n = 
              new AttributeChangeNotification(this, 
                sequenceNumber++, 
                System.currentTimeMillis(), 
                "New status", 
                "Status", 
                "String",

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