Spring @EventListener support in component

@heruan commented on Wed Jan 03 2018

When building a PWA with Flow and Spring, I'd like my components able to react on server events using Spring's @EventListener and @TransactionalEventListener. For example:

@Route("users")
public class UserList extends Grid<User> {

    // ...

    @EventListener
    public void onNewUser(NewUserEvent event) {
        UI.getCurrent().access(getDataProvider()::refreshAll);
    }

}

At the moment it seems like @EventListener-annotated methods in @Route-annotated components are not invoked when the observed event is published.

The issue names Vaadin @Route components and Spring's @EventListener and @TransactionalEventListener annotations, but no files or tests. Start by tracing how routed components are created and how Spring event listeners are registered, then reproduce the example with a published event. Done means both annotated listener types are invoked on routed components.