BaseNotificationBroadcaster (Apache Tomcat 6.0.51 API Documentation)
Keywords: org.apache.tomcat.util.modeler.BaseNotificationBroadcaster class

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## org.apache.tomcat.util.modeler
Class BaseNotificationBroadcaster

    java.lang.Object
      org.apache.tomcat.util.modeler.BaseNotificationBroadcaster

All Implemented Interfaces:
  javax.management.NotificationBroadcaster

    public class BaseNotificationBroadcaster

extends java.lang.Object
implements javax.management.NotificationBroadcaster

Implementation of `NotificationBroadcaster` for attribute change notifications. This class is used by `BaseModelMBean` to handle notifications of attribute change events to interested listeners.

Author:
  Craig R. McClanahan, Costin Manolache

Field Summary
`protected java.util.ArrayList` | `entries` The set of registered `BaseNotificationBroadcasterEntry` entries.

Constructor Summary
`BaseNotificationBroadcaster()`

Method Summary
`void` | `addNotificationListener(javax.management.NotificationListener listener, javax.management.NotificationFilter filter, java.lang.Object handback)` Add a notification event listener to this MBean.
`javax.management.MBeanNotificationInfo[]` | `getNotificationInfo()` Return an `MBeanNotificationInfo` object describing the notifications sent by this MBean.
`void` | `removeNotificationListener(javax.management.NotificationListener listener)` Remove a notification event listener from this MBean.
`void` | `removeNotificationListener(javax.management.NotificationListener listener, javax.management.NotificationFilter filter, java.lang.Object handback)` Remove a notification event listener from this MBean.
`void` | `removeNotificationListener(javax.management.NotificationListener listener, java.lang.Object handback)` Remove a notification event listener from this MBean.
`void` | `sendNotification(javax.management.Notification notification)` Send the specified notification to all interested listeners.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### entries

    protected java.util.ArrayList entries

  The set of registered `BaseNotificationBroadcasterEntry` entries.

Constructor Detail

### BaseNotificationBroadcaster

    public BaseNotificationBroadcaster()

Method Detail

### addNotificationListener

    public void addNotificationListener(javax.management.NotificationListener listener,
                                        javax.management.NotificationFilter filter,
                                        java.lang.Object handback)
                                 throws java.lang.IllegalArgumentException

  Add a notification event listener to this MBean.

  Specified by:
    `addNotificationListener` in interface `javax.management.NotificationBroadcaster`
  Parameters:
    `listener` - Listener that will receive event notifications
    `filter` - Filter object used to filter event notifications actually delivered, or `null` for no filtering
    `handback` - Handback object to be sent along with event notifications
  Throws:
    `java.lang.IllegalArgumentException` - if the listener parameter is null

### getNotificationInfo

    public javax.management.MBeanNotificationInfo[] getNotificationInfo()

  Return an `MBeanNotificationInfo` object describing the notifications sent by this MBean.

  Specified by:
    `getNotificationInfo` in interface `javax.management.NotificationBroadcaster`

### removeNotificationListener

    public void removeNotificationListener(javax.management.NotificationListener listener)
                                    throws javax.management.ListenerNotFoundException

  Remove a notification event listener from this MBean.

  Specified by:
    `removeNotificationListener` in interface `javax.management.NotificationBroadcaster`
  Parameters:
    `listener` - The listener to be removed (any and all registrations for this listener will be eliminated)
  Throws:
    `javax.management.ListenerNotFoundException` - if this listener is not registered in the MBean

### removeNotificationListener

    public void removeNotificationListener(javax.management.NotificationListener listener,
                                           java.lang.Object handback)
                                    throws javax.management.ListenerNotFoundException

  Remove a notification event listener from this MBean.

  Parameters:
    `listener` - The listener to be removed (any and all registrations for this listener will be eliminated)
    `handback` - Handback object to be sent along with event notifications
  Throws:
    `javax.management.ListenerNotFoundException` - if this listener is not registered in the MBean

### removeNotificationListener

    public void removeNotificationListener(javax.management.NotificationListener listener,
                                           javax.management.NotificationFilter filter,
                                           java.lang.Object handback)
                                    throws javax.management.ListenerNotFoundException

  Remove a notification event listener from this MBean.

  Parameters:
    `listener` - The listener to be removed (any and all registrations for this listener will be eliminated)
    `filter` - Filter object used to filter event notifications actually delivered, or `null` for no filtering
    `handback` - Handback object to be sent along with event notifications
  Throws:
    `javax.management.ListenerNotFoundException` - if this listener is not registered in the MBean

### sendNotification

    public void sendNotification(javax.management.Notification notification)

  Send the specified notification to all interested listeners.

  Parameters:
    `notification` - The notification to be sent

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