How to split and dispatch an async control-flow using Continuations?

Question

I have an asynchronous control-flow like the following:

ActorA ! DoA(dataA, callback1, callbackOnErrorA)

def callback1() = {
  ...
  ActorB ! DoB(dataB, callbac         


        

Answer 1

See Akka's Futures and how to compose them or scalaz's Promises, they are nearly the same, there are only slight differences.