ScaldiAkkaExample.scala

// First you need to create module with actor system and actor bindings in it:
// IMPORTANT: `Actor` bindings should always be providers (bound with `toProvider` method, 
// IMPORTANT: which will create new instances each time it gets injected)
implicit val module = new Module {
  bind [ActorSystem] to ActorSystem("MySystem")
 
  bind [GreetPrinter] toProvider new GreetPrinter
  binding toProvider new GenericPrinter
 
  bind [PrintStream] to Console.out
}
 
// Now you can inject them by using `AkkaInjectable`
// It can inject an actor ref with `injectActorRef` method or,
// if you want to create actor yourself, it can inject actor Props
// with `injectActorProps`
import scaldi.akka.AkkaInjectable._
 
implicit val system = inject [ActorSystem]
 
val greetPrinter = injectActorRef [GreetPrinter] (name = "myPrinter")
// or
val greetPrinter = system.actorOf(injectActorProps[GreetPrinter], "myPrinter")
 
greetPrinter ! Greeting("Hello")
 
// You can also mix-in `AkkaInjectable` in the `Actor` itself in order to inject actor refs
class GreetPrinter(implicit inj: Injector) extends Actor with AkkaInjectable {
  val printer = injectActorRef [GenericPrinter]
 
  def receive = {
    case Greeting(message) => printer ! Print(message)
  }
}
 
class GenericPrinter(implicit inj: Injector) extends Actor with AkkaInjectable {
  val stream = inject [PrintStream]
 
  def receive = {
    case Print(text) => stream.println(text)
  }
}