Let behavior swap be a first citizen.

[andreaTP]

All the Typed API is really well defined and you have 2/3 of the Actor model semantics already available:

• spawn new (re)actors
• passing messages between (re)actors

the missing point IMO is

• a (re)actor could change it's behavior

Talking with @axel22 he said that there are alternatives to have this, but I'd like to have it as a first class API from the library.

WDYT?

[axel22]

Hi @andreaTP !

Seems like that could be achieved something like this:

class BehaveReactor extends Reactor[String] { self =>
  def behave(f: String => Unit): Unit = {
    subscription.unsubscribe()
    self.main.events.onEvent(f)
  }
  def otherBehavior(s: String) = println("Second event: " + s)
  val subscription = self.main.events onEvent { x =>
    println("First event: " + x)
    behave(otherBehavior)
  }
}

val ch = system.spawn(Proto[BehaveReactor])
ch ! "Hello"
ch ! "World!"

Is that what you had in mind?

[andreaTP]

Hi @axel22
thanks for the answer, this solves only partially the problem,

i.e. : what if I'm in the otherBehavior and I wanna dependently pass to a third one? for example if I receive "Uppercase" or "Lowercase" I will print messages as indicated from there on.
Describing it in within a behavior that can change again.

Hope this is clear...