@PostContextCreate
void postContextCreate(final IEventBroker eventBroker) {
	eventBroker.subscribe(UIEvents.UILifeCycle.ACTIVATE, new EventHandler() {
		@Override
		public void handleEvent(Event event) {
			...
			eventBroker.unsubscribe(this);
		}
	});
}

	@PostContextCreate
	public void postContextCreate(final IEventBroker eventBroker) {
		logger.info("AppLifeCycle: @PostContextCreate");
		eventBroker.subscribe(UIEvents.ALL_SUB_TOPICS, new EventHandler() {
			@Override
			public void handleEvent(Event event) {
				logger.info("UIEvent: {}", event);
			}
		});
	}