akka.actor

ActorRefFactory

trait ActorRefFactory extends AnyRef

Interface implemented by ActorSystem and AkkaContext, the only two places from which you can get fresh actors.

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  1. ActorRefFactory
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Abstract Value Members

  1. abstract def actorOf(props: Props, name: String): ActorRef

    Create new actor as child of this context with the given name, which must not be null, empty or start with “$”.

    Create new actor as child of this context with the given name, which must not be null, empty or start with “$”. If the given name is already in use, and InvalidActorNameException is thrown.

    See Props for details on how to obtain a Props object.

    When invoked on ActorSystem, this method sends a message to the guardian actor and blocks waiting for a reply, see akka.actor.creation-timeout in the reference.conf.

  2. abstract def actorOf(props: Props): ActorRef

    Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).

    Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).

    See Props for details on how to obtain a Props object.

    When invoked on ActorSystem, this method sends a message to the guardian actor and blocks waiting for a reply, see akka.actor.creation-timeout in the reference.conf.

  3. abstract def dispatcher: MessageDispatcher

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    protected
  4. abstract def guardian: InternalActorRef

    Father of all children created by this interface.

    Father of all children created by this interface.

    Attributes
    protected
  5. abstract def lookupRoot: InternalActorRef

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    protected
  6. abstract def provider: ActorRefProvider

    Attributes
    protected
  7. abstract def stop(actor: ActorRef): Unit

    Stop the actor pointed to by the given ActorRef; this is an asynchronous operation, i.

    Stop the actor pointed to by the given ActorRef; this is an asynchronous operation, i.e. involves a message send. When invoked on ActorSystem for a top-level actor, this method sends a message to the guardian actor and blocks waiting for a reply, see akka.actor.creation-timeout in the reference.conf.

  8. abstract def systemImpl: ActorSystemImpl

    Attributes
    protected

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. def actorFor(path: Iterable[String]): ActorRef

    Java API: Look-up an actor by applying the given path elements, starting from the current context, where ".." signifies the parent of an actor.

    Java API: Look-up an actor by applying the given path elements, starting from the current context, where ".." signifies the parent of an actor.

    Example:

    public class MyActor extends UntypedActor {
      public void onReceive(Object msg) throws Exception {
        ...
        final List<String> path = new ArrayList<String>();
        path.add("..");
        path.add("myBrother");
        path.add("myNephew");
        final ActorRef target = context().actorFor(path);
        ...
    }
    }
    

    For maximum performance use a collection with efficient head & tail operations.

  7. def actorFor(path: Iterable[String]): ActorRef

    Look-up an actor by applying the given path elements, starting from the current context, where ".." signifies the parent of an actor.

    Look-up an actor by applying the given path elements, starting from the current context, where ".." signifies the parent of an actor.

    Example:

    class MyActor extends Actor {
      def receive = {
        case msg =>
          ...
          val target = context.actorFor(Seq("..", "myBrother", "myNephew"))
          ...
    }
    }
    

    For maximum performance use a collection with efficient head & tail operations.

  8. def actorFor(path: String): ActorRef

    Look-up an actor by path represented as string.

    Look-up an actor by path represented as string.

    Absolute URIs like akka://appname/user/actorA are looked up as described for look-ups by actorOf(ActorPath).

    Relative URIs like /service/actorA/childB are looked up relative to the root path of the ActorSystem containing this factory and as described for look-ups by actorOf(Iterable[String]).

    Relative URIs like myChild/grandChild or ../myBrother are looked up relative to the current context as described for look-ups by actorOf(Iterable[String])

  9. def actorFor(path: ActorPath): ActorRef

    Look-up an actor by path; if it does not exist, returns a reference to the dead-letter mailbox of the ActorSystem.

    Look-up an actor by path; if it does not exist, returns a reference to the dead-letter mailbox of the ActorSystem. If the path point to an actor which is not local, no attempt is made during this call to verify that the actor it represents does exist or is alive; use watch(ref) to be notified of the target’s termination, which is also signaled if the queried path cannot be resolved.

  10. def actorSelection(path: String): ActorSelection

    Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally).

    Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally). No attempt is made to verify the existence of any part of the supplied path, it is recommended to send a message and gather the replies in order to resolve the matching set of actors.

  11. final def asInstanceOf[T0]: T0

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  12. def clone(): AnyRef

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  13. final def eq(arg0: AnyRef): Boolean

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  14. def equals(arg0: Any): Boolean

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  15. def finalize(): Unit

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  16. final def getClass(): java.lang.Class[_]

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  17. def hashCode(): Int

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  18. final def isInstanceOf[T0]: Boolean

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  19. final def ne(arg0: AnyRef): Boolean

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  20. final def notify(): Unit

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  21. final def notifyAll(): Unit

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  22. final def synchronized[T0](arg0: ⇒ T0): T0

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  23. def toString(): String

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  24. final def wait(): Unit

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  25. final def wait(arg0: Long, arg1: Int): Unit

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  26. final def wait(arg0: Long): Unit

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