OSGi™ Core
Release 5

Interface EventListenerHook

public interface EventListenerHook

OSGi Framework Service Event Listener Hook Service.

Bundles registering this service will be called during framework service (register, modify, and unregister service) operations.


Method Summary
 void event(ServiceEvent event, java.util.Map<BundleContext,java.util.Collection<ListenerHook.ListenerInfo>> listeners)
          Event listener hook method.

Method Detail


void event(ServiceEvent event,
           java.util.Map<BundleContext,java.util.Collection<ListenerHook.ListenerInfo>> listeners)
Event listener hook method. This method is called prior to service event delivery when a publishing bundle registers, modifies or unregisters a service. This method can filter the listeners which receive the event.

event - The service event to be delivered.
listeners - A map of Bundle Contexts to a collection of Listener Infos for the bundle's listeners to which the specified event will be delivered. The implementation of this method may remove bundle contexts from the map and listener infos from the collection values to prevent the event from being delivered to the associated listeners. The map supports all the optional Map operations except put and putAll. Attempting to add to the map will result in an UnsupportedOperationException. The collection values in the map supports all the optional Collection operations except add and addAll. Attempting to add to a collection will result in an UnsupportedOperationException . The map and the collections are not synchronized.

OSGi™ Core
Release 5

Copyright © OSGi Alliance (2000, 2012). All Rights Reserved. Licensed under the OSGi Specification License, Version 2.0