651f699893
- akka.Main will start an ActorSystem and one actor; when that actor terminates the system is shut down - HelloWorld sample with two actors
50 lines
No EOL
948 B
Scala
50 lines
No EOL
948 B
Scala
/**
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* Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
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*/
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package docs.actor
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import akka.testkit.AkkaSpec
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//#hello-world
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import akka.actor.Actor
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import akka.actor.Props
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class HelloWorld extends Actor {
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override def preStart(): Unit = {
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// create the greeter actor
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val greeter = context.actorOf(Props[Greeter], "greeter")
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// tell it to perform the greeting
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greeter ! Greeter.Greet
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}
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def receive = {
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// when the greeter is done, stop this actor and with it the application
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case Greeter.Done ⇒ context.stop(self)
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}
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}
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//#hello-world
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//#greeter
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object Greeter {
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case object Greet
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case object Done
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}
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class Greeter extends Actor {
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def receive = {
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case Greeter.Greet ⇒
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println("Hello World!")
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sender ! Greeter.Done
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}
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}
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//#greeter
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class IntroDocSpec extends AkkaSpec {
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"demonstrate HelloWorld" in {
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expectTerminated(watch(system.actorOf(Props[HelloWorld])))
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}
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} |