How to get rid of downcast using synchronous send with Scala Actors?

Question

Suppose, I send a request to an actor and receive its response synchronously:

case class MyRequest()
case class MyResponse(data:Any)

val resp = myActor !? MyRequest()

Now I have to downcast resp to MyResponse to access data

val data = (resp.asInstanceOf[MyResponse]).data

How can I git rid of the casting and write the code in a type safe manner? (I guess I can use pattern matching instead but I would prefer another solution).

Answer 1

As far as I know Scala Actors aren´t typed. So use Akka actors, which support typed actors. I also encountered your problem before and have handeled it with implicit manifest to get some kind of typed actors in scala.