org.vaadin.spring.events

Interface EventBusListenerMethodFilter

All Known Implementing Classes:

NoEventBusListenerMethodFilter

public interface EventBusListenerMethodFilter

A method annotated with @EventBusListenerMethod will be invoked if it is subscribed to the EventBus that published the Event (or Object payload). That method will oftentimes employ filtering code in the method internals, because of the possibility that multiple annotated methods might listen to same the Event.

As a convenience, an implementation of this filter may be defined in EventBusListenerMethod.filter() and stand in place of such filtering code.

Author:

Chris Phillipson (fastnsilver@gmail.com)

Method Summary

Modifier and Type	Method and Description
boolean	filter(Event<?> event) Criteria used to influence when an @EventBusListenerMethod annotated method with this filter defined will execute

Method Detail

filter

boolean filter(Event<?> event)

Criteria used to influence when an @EventBusListenerMethod annotated method with this filter defined will execute

Parameters:

event - EventBus event

Returns:

true if filtering condition met; false otherwise