Package org.osgi.service.typedevent

Interface TypedEventHandler<T>

Type Parameters:
T - The type of the event to be received
@ConsumerType public interface TypedEventHandler<T>
Listener for Typed Events.

TypedEventHandler objects are registered with the Framework service registry and are notified with an event object when an event is sent.

TypedEventHandler objects are expected to reify the type parameter T with the type of object they wish to receive when implementing this interface. This type can be overridden using the TypedEventConstants.TYPED_EVENT_TOPICS service property.

TypedEventHandler objects may be registered with a service property TypedEventConstants.TYPED_EVENT_TOPICS whose value is the list of topics in which the event handler is interested.

For example: 

 String[] topics = new String[] {
                "com/isv/*"
 };
 Hashtable ht = new Hashtable();
 ht.put(EventConstants.TYPE_SAFE_EVENT_TOPICS, topics);
 context.registerService(TypedEventHandler.class, this, ht);
"ThreadSafe"

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    notify(String topic, T event)
    Called by the TypedEventBus service to notify the listener of an event.

  • Method Details

    • notify

      void notify(String topic, T event)
      Called by the TypedEventBus service to notify the listener of an event.
      Parameters:
      topic - The topic to which the event was sent
      event - The event that occurred.