I have a scenario where when an actor receives a specific message it must 
forward the message to all of it's children that exist at that time.

I think I have 2 options to solve this.

getContext().actorSelection("*").forward(message, getContext());

or

getContext().getChildren().forEach(child -> child.forward(message, 
getContext()));

Without fully understanding the internal implementation of actor selection 
it's hard to know which will perform better. I plan to perform some bench 
marks with the kind of scale I am expecting to require but would appreciate 
any insight to this that experienced users may have.

Thanks

I've also created a stack overflow question for this if anyone would like 
to answer that: 
http://stackoverflow.com/questions/28189059/is-forwarding-a-message-to-all-children-via-an-actor-selection-more-efficient-th

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