Can you share some code. I just tried to reproduce it based on your
explanation and it all works for me (see code below), but may be I am
missing something.
Cheers
Oleg
=========
import akka.actor.Actor
import akka.actor.ActorSystem
import akka.actor.FSM
import akka.actor.FSM.SubscribeTransitionCallBack
import akka.actor.Props
sealed trait State
case object RED extends State
case object GREEN extends State
case class Data
case class AlternateColor
object FsmActor extends App {
val system = ActorSystem("akka")
val fsmActor = system.actorOf(Props[FsmActor], "FSMActor")
val monitor = system.actorOf(Props(classOf[StateMonitor]), "StateMonitor")
fsmActor ! SubscribeTransitionCallBack(monitor)
(1 to 10) foreach { i => fsmActor ! AlternateColor }
}
class StateMonitor extends Actor {
def receive = {
x => {
x match {
case _ => println("MONITOR RECEIVED: " + x)
}
}
}
}
class FsmActor extends Actor with FSM[State, Data] {
override def preStart(): Unit = {
println("hello prestart")
}
startWith(RED, Data())
when(RED) {
case Event(AlternateColor, _) => goto(GREEN)
}
when(GREEN) {
case Event(AlternateColor, _) => goto(RED)
}
onTransition {
case RED -> GREEN => println("I am RED, going GREEN")
case GREEN -> RED => println("I am GREEN, going RED")
}
initialize
}
On Tue, Jan 28, 2014 at 3:38 PM, Vadim Bobrov <vadimbob...@gmail.com> wrote:
> Hi,
>
> I ran into this problem: when preStart is overriden (empty) for an FSM
> actor it stops sending CurrentState in response
> to SubscribeTransitionCallBack. Tried putting
>
> startWith
> initialize
>
> into preStart, still not getting CurrentState. What is the correct
> solution in this case? I am disabling preStart so I can customize recovery
> in Persistence module
>
> Thanks
> Vadim
>
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