trait ActorRef[-T] extends RecipientRef[T] with Comparable[ActorRef[_]] with Serializable

An ActorRef is the identity or address of an Actor instance. It is valid only during the Actor’s lifetime and allows messages to be sent to that Actor instance. Sending a message to an Actor that has terminated before receiving the message will lead to that message being discarded; such messages are delivered to the DeadLetter channel of the akka.event.EventStream on a best effort basis (i.e. this delivery is not reliable).

Not for user extension

Self Type
ActorRef[T] with InternalRecipientRef[T]
Annotations
@DoNotInherit()
Source
ActorRef.scala
Linear Supertypes
Serializable, Comparable[ActorRef[_]], RecipientRef[T], AnyRef, Any
Known Subclasses
ActorSystem
Ordering
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Inherited
  1. ActorRef
  2. Serializable
  3. Comparable
  4. RecipientRef
  5. AnyRef
  6. Any
Implicitly
  1. by ActorRefOps
  2. by RecipientRefOps
  3. by any2stringadd
  4. by StringFormat
  5. by Ensuring
  6. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def compareTo(arg0: ActorRef[_]): Int
    Definition Classes
    Comparable
  2. abstract def narrow[U <: T]: ActorRef[U]

    Narrow the type of this ActorRef, which is always a safe operation.

  3. abstract def path: ActorPath

    The hierarchical path name of the referenced Actor.

    The hierarchical path name of the referenced Actor. The lifecycle of the ActorRef is fully contained within the lifecycle of the akka.actor.ActorPath and more than one Actor instance can exist with the same path at different points in time, but not concurrently.

  4. abstract def tell(msg: T): Unit

    Send a message to the Actor referenced by this ActorRef using *at-most-once* messaging semantics.

    Send a message to the Actor referenced by this ActorRef using *at-most-once* messaging semantics.

    Definition Classes
    ActorRef → RecipientRef
  5. abstract def unsafeUpcast[U >: T]: ActorRef[U]

    Unsafe utility method for widening the type accepted by this ActorRef; provided to avoid having to use asInstanceOf on the full reference type, which would unfortunately also work on non-ActorRefs.

    Unsafe utility method for widening the type accepted by this ActorRef; provided to avoid having to use asInstanceOf on the full reference type, which would unfortunately also work on non-ActorRefs. Use it with caution,it may cause a ClassCastException when you send a message to the widened ActorRef[U].

Shadowed Implicit Value Members

  1. def !(msg: T): Unit

    Send a message to the Actor referenced by this ActorRef using *at-most-once* messaging semantics.

    Send a message to the Actor referenced by this ActorRef using *at-most-once* messaging semantics.

    Implicit
    This member is added by an implicit conversion from ActorRef[T] to ActorRefOps[T] performed by method ActorRefOps in akka.actor.typed.ActorRef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (actorRef: ActorRefOps[T]).!(msg)
    Definition Classes
    ActorRefOps
  2. def !(msg: T): Unit

    Send a message to the destination referenced by this RecipientRef using *at-most-once* messaging semantics.

    Send a message to the destination referenced by this RecipientRef using *at-most-once* messaging semantics.

    Implicit
    This member is added by an implicit conversion from ActorRef[T] to RecipientRefOps[T] performed by method RecipientRefOps in akka.actor.typed.RecipientRef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (actorRef: RecipientRefOps[T]).!(msg)
    Definition Classes
    RecipientRefOps
  3. val ref: ActorRef[T]
    Implicit
    This member is added by an implicit conversion from ActorRef[T] to ActorRefOps[T] performed by method ActorRefOps in akka.actor.typed.ActorRef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (actorRef: ActorRefOps[T]).ref
    Definition Classes
    ActorRefOps
  4. val ref: RecipientRef[T]
    Implicit
    This member is added by an implicit conversion from ActorRef[T] to RecipientRefOps[T] performed by method RecipientRefOps in akka.actor.typed.RecipientRef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (actorRef: RecipientRefOps[T]).ref
    Definition Classes
    RecipientRefOps