Actors typcially required state that are var-declarations.; e.g., to hold a
sum in an accumulator. What's the best way to do this without
var-declarations?
One that comes to mind is to keep 'becoming' a new behavior as shown below.
Is this efficient? Is there a pattern to write the *receive *method without
the auxillary *morph *method?
Enter code here...
class FunctionalActor(val sum: Int) extends Actor {
def morph(sum: Int) : Receive = {
case "inc" =>
context.become(morph(sum+1))
case "report" =>
sender() ! sum
context.become(morph(0))
}
def receive : Receive = morph(sum)
}
Thanks.
Lal
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