Packages

t

akka.pattern

AskSupport

trait AskSupport extends AnyRef

This object contains implementation details of the “ask” pattern.

Source
AskSupport.scala
Linear Supertypes
AnyRef, Any
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Inherited
  1. AskSupport
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from AskSupport to any2stringadd[AskSupport] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (AskSupport, B)
    Implicit
    This member is added by an implicit conversion from AskSupport to ArrowAssoc[AskSupport] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def ask(actorSelection: ActorSelection, message: Any, sender: ActorRef)(implicit timeout: Timeout): Future[Any]
  8. def ask(actorSelection: ActorSelection, message: Any)(implicit timeout: Timeout): Future[Any]

    Sends a message asynchronously and returns a scala.concurrent.Future holding the eventual reply message; this means that the target actor needs to send the result to the sender reference provided.

    Sends a message asynchronously and returns a scala.concurrent.Future holding the eventual reply message; this means that the target actor needs to send the result to the sender reference provided.

    The Future will be completed with an akka.pattern.AskTimeoutException after the given timeout has expired; this is independent from any timeout applied while awaiting a result for this future (i.e. in Await.result(..., timeout)). A typical reason for AskTimeoutException is that the recipient actor didn't send a reply.

    Warning: When using future callbacks, inside actors you need to carefully avoid closing over the containing actor’s object, i.e. do not call methods or access mutable state on the enclosing actor from within the callback. This would break the actor encapsulation and may introduce synchronization bugs and race conditions because the callback will be scheduled concurrently to the enclosing actor. Unfortunately there is not yet a way to detect these illegal accesses at compile time.

    Recommended usage:

    val f = ask(worker, request)(timeout)
f.map { response =>
  EnrichedMessage(response)
} pipeTo nextActor
  9. implicit def ask(actorSelection: ActorSelection): AskableActorSelection

    Import this implicit conversion to gain ? and ask methods on akka.actor.ActorSelection, which will defer to the ask(actorSelection, message)(timeout) method defined here.

    Import this implicit conversion to gain ? and ask methods on akka.actor.ActorSelection, which will defer to the ask(actorSelection, message)(timeout) method defined here.

    import akka.pattern.ask

val future = selection ? message             // => ask(selection, message)
val future = selection ask message           // => ask(selection, message)
val future = selection.ask(message)(timeout) // => ask(selection, message)(timeout)

    All of the above use an implicit akka.util.Timeout.

  10. def ask(actorRef: ActorRef, message: Any, sender: ActorRef)(implicit timeout: Timeout): Future[Any]
  11. def ask(actorRef: ActorRef, message: Any)(implicit timeout: Timeout): Future[Any]

    Sends a message asynchronously and returns a scala.concurrent.Future holding the eventual reply message; this means that the target actor needs to send the result to the sender reference provided.

    Sends a message asynchronously and returns a scala.concurrent.Future holding the eventual reply message; this means that the target actor needs to send the result to the sender reference provided.

    The Future will be completed with an akka.pattern.AskTimeoutException after the given timeout has expired; this is independent from any timeout applied while awaiting a result for this future (i.e. in Await.result(..., timeout)). A typical reason for AskTimeoutException is that the recipient actor didn't send a reply.

    Warning: When using future callbacks, inside actors you need to carefully avoid closing over the containing actor’s object, i.e. do not call methods or access mutable state on the enclosing actor from within the callback. This would break the actor encapsulation and may introduce synchronization bugs and race conditions because the callback will be scheduled concurrently to the enclosing actor. Unfortunately there is not yet a way to detect these illegal accesses at compile time.

    Recommended usage:

    val f = ask(worker, request)(timeout)
f.map { response =>
  EnrichedMessage(response)
} pipeTo nextActor
  12. implicit def ask(actorRef: ActorRef): AskableActorRef

    Import this implicit conversion to gain ? and ask methods on akka.actor.ActorRef, which will defer to the ask(actorRef, message)(timeout) method defined here.

    Import this implicit conversion to gain ? and ask methods on akka.actor.ActorRef, which will defer to the ask(actorRef, message)(timeout) method defined here.

    import akka.pattern.ask

val future = actor ? message             // => ask(actor, message)
val future = actor ask message           // => ask(actor, message)
val future = actor.ask(message)(timeout) // => ask(actor, message)(timeout)

    All of the above use an implicit akka.util.Timeout.

  13. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate() @throws( ... )
  14. def ensuring(cond: (AskSupport) ⇒ Boolean, msg: ⇒ Any): AskSupport
    Implicit
    This member is added by an implicit conversion from AskSupport to Ensuring[AskSupport] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: (AskSupport) ⇒ Boolean): AskSupport
    Implicit
    This member is added by an implicit conversion from AskSupport to Ensuring[AskSupport] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: Boolean, msg: ⇒ Any): AskSupport
    Implicit
    This member is added by an implicit conversion from AskSupport to Ensuring[AskSupport] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. def ensuring(cond: Boolean): AskSupport
    Implicit
    This member is added by an implicit conversion from AskSupport to Ensuring[AskSupport] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  18. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  20. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from AskSupport to StringFormat[AskSupport] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  21. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  23. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  24. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  25. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  26. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  27. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  28. def toString(): String
    Definition Classes
    AnyRef → Any
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  31. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  32. def →[B](y: B): (AskSupport, B)
    Implicit
    This member is added by an implicit conversion from AskSupport to ArrowAssoc[AskSupport] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from AskSupport to any2stringadd[AskSupport]

Inherited by implicit conversion StringFormat from AskSupport to StringFormat[AskSupport]

Inherited by implicit conversion Ensuring from AskSupport to Ensuring[AskSupport]

Inherited by implicit conversion ArrowAssoc from AskSupport to ArrowAssoc[AskSupport]

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