Event handling across different presenters

[Ben]

Hello all,

I've got a question about event handling:

I have an application with several presenters. Two of them interfer via the eventbus, let's call them presenter A and B.

In presenter A I call "addRegisteredHandler(AEvent.getType(), this)" in "onBind()".
In presenter B I call "fireEvent(new AEvent());"

This works like a charm if both presenters are already loaded.
BUT if I am located on presenter B and press "F5" the event can get fired, but presenter A is not registered to it, because it has not been created, yet.

How do I resolve this problem?

Regards
Ben

[Christian Goudreau]

You can use @ProxyEvent for those case. That happen because Presenter are lazily instantiated to allow code splitting.

I realize that this is not well documented, but there's a old article talking about it:

http://arcbees.wordpress.com/2010/08/31/using-proxyevent/

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[Ben]

It works, thank you very much!

I have a related question:
Is it possible for presenter B to determine if presenter A has already been instantiated?

Regards
Ben

[Christian Goudreau]

Not really, most of the lifecycle is managed by gin.

[Ben]

What a pity.
Thank you anyways!