org.zkoss.zkmax.ui.eq
Interface EventQueue

public interface EventQueue

An event queue. An event queue is a many-to-many 'channel' to publish events and to subscribe listeners.

Since:

3.5.0

Author:

tomyeh

Method Summary

void	publish(Event event) Publishes an event the queue.
void	subscribe(EventListener listener) Subscribes a listener to queue.
boolean	unsubscribe(EventListener listener) Unsubscribes a listener from the queue.

Method Detail

publish

void publish(Event event)

Publishes an event the queue.

Note: this method must be called within an activated exection, i.e., Executions.getCurrent() not null.

Throws:

java.lang.IllegalStateException - if this method is called not within an activated execution (such as a working thread).

subscribe

void subscribe(EventListener listener)

Subscribes a listener to queue.

Note: this method must be called within an activated exection, i.e., Executions.getCurrent() not null.

unsubscribe

boolean unsubscribe(EventListener listener)

Unsubscribes a listener from the queue.

Note: this method must be called within an activated exection, i.e., Executions.getCurrent() not null.

Returns:

true if the listener was subscribed.