de.intarsys.tools.eventbus

Interface IEventBus

All Superinterfaces:

EventListener, INotificationListener

All Known Implementing Classes:

StandardEventBus

public interface IEventBus
extends INotificationListener

A simple publish / subscribe bus.

Method Summary

Methods

Modifier and Type	Method and Description
void	register(INotificationSupport ns) Any object wanting to propagate its own notifications via the IEventBus can simply register himself.
void	subscribe(EventSourcePredicate predicate, EventType type, INotificationListener listener) Indicate that listener should be informed whenever a notification of EventType type isissued by a source accepted by predicate.
void	unregister(INotificationSupport ns) Stop forwarding events from ns to the IEventBus.

Methods inherited from interface de.intarsys.tools.event.INotificationListener

handleEvent

Method Detail

register

void register(INotificationSupport ns)

Any object wanting to propagate its own notifications via the IEventBus can simply register himself. Every notification issued by ns will be forwarded to the IEventBus.

Parameters:

ns -

subscribe

void subscribe(EventSourcePredicate predicate,
             EventType type,
             INotificationListener listener)

Indicate that listener should be informed whenever a notification of EventType type isissued by a source accepted by predicate.

Parameters:

predicate -

type -

listener -

unregister

void unregister(INotificationSupport ns)

Stop forwarding events from ns to the IEventBus.

Parameters:

ns -