sealed abstract class Behavior[T] extends AnyRef

The behavior of an actor defines how it reacts to the messages that it receives. The message may either be of the type that the Actor declares and which is part of the ActorRef signature, or it may be a system Signal that expresses a lifecycle event of either this actor or one of its child actors.

Behaviors can be formulated in a number of different ways, either by using the DSLs in akka.actor.typed.scaladsl.Behaviors and akka.actor.typed.javadsl.Behaviors or extending the abstract ExtensibleBehavior class.

Closing over ActorContext makes a Behavior immobile: it cannot be moved to another context and executed there, and therefore it cannot be replicated or forked either.

This base class is not meant to be extended by user code. If you do so, you may lose binary compatibility.

Not for user extension.

Self Type
Behavior[T]
Annotations
@ApiMayChange() @DoNotInherit()
Source
Behavior.scala
Linear Supertypes
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Inherited
  1. Behavior
  2. AnyRef
  3. Any
Implicitly
  1. by BehaviorDecorators
  2. by any2stringadd
  3. by StringFormat
  4. by Ensuring
  5. by ArrowAssoc
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Visibility
  1. Public
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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 Behavior[T] to any2stringadd[Behavior[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Behavior[T], B)
    Implicit
    This member is added by an implicit conversion from Behavior[T] to ArrowAssoc[Behavior[T]] 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. val behavior: Behavior[T]
    Implicit
    This member is added by an implicit conversion from Behavior[T] to BehaviorDecorators[T] performed by method BehaviorDecorators in akka.actor.typed.Behavior.
    Definition Classes
    BehaviorDecorators
  8. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate() @throws( ... )
  9. def ensuring(cond: (Behavior[T]) ⇒ Boolean, msg: ⇒ Any): Behavior[T]
    Implicit
    This member is added by an implicit conversion from Behavior[T] to Ensuring[Behavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (Behavior[T]) ⇒ Boolean): Behavior[T]
    Implicit
    This member is added by an implicit conversion from Behavior[T] to Ensuring[Behavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): Behavior[T]
    Implicit
    This member is added by an implicit conversion from Behavior[T] to Ensuring[Behavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): Behavior[T]
    Implicit
    This member is added by an implicit conversion from Behavior[T] to Ensuring[Behavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Behavior[T] to StringFormat[Behavior[T]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  17. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. final def narrow[U <: T]: Behavior[U]

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

    Narrow the type of this Behavior, which is always a safe operation. This method is necessary to implement the contravariant nature of Behavior (which cannot be expressed directly due to type inference problems).

  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  23. final def orElse(that: Behavior[T]): Behavior[T]

    Composes this Behavior with a fallback Behavior which is used when this Behavior doesn't handle the message or signal, i.e. when unhandled is returned.

    Composes this Behavior with a fallback Behavior which is used when this Behavior doesn't handle the message or signal, i.e. when unhandled is returned.

    that

    the fallback Behavior

  24. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  28. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. def widen[U](matcher: PartialFunction[U, T]): Behavior[U]

    Widen the wrapped Behavior by placing a funnel in front of it: the supplied PartialFunction decides which message to pull in (those that it is defined at) and may transform the incoming message to place them into the wrapped Behavior’s type hierarchy.

    Widen the wrapped Behavior by placing a funnel in front of it: the supplied PartialFunction decides which message to pull in (those that it is defined at) and may transform the incoming message to place them into the wrapped Behavior’s type hierarchy. Signals are not transformed.

    Example:

    receive[String] { (ctx, msg) => println(msg); same }.widen[Number] {
      case b: BigDecimal => s"BigDecimal($b)"
      case i: BigInteger => s"BigInteger($i)"
      // all other kinds of Number will be `unhandled`
    }

    Scheduled messages via akka.actor.typed.scaladsl.TimerScheduler can currently not be used together with widen, see issue #25318.

    Implicit
    This member is added by an implicit conversion from Behavior[T] to BehaviorDecorators[T] performed by method BehaviorDecorators in akka.actor.typed.Behavior.
    Definition Classes
    BehaviorDecorators
  30. def [B](y: B): (Behavior[T], B)
    Implicit
    This member is added by an implicit conversion from Behavior[T] to ArrowAssoc[Behavior[T]] 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 BehaviorDecorators from Behavior[T] to BehaviorDecorators[T]

Inherited by implicit conversion any2stringadd from Behavior[T] to any2stringadd[Behavior[T]]

Inherited by implicit conversion StringFormat from Behavior[T] to StringFormat[Behavior[T]]

Inherited by implicit conversion Ensuring from Behavior[T] to Ensuring[Behavior[T]]

Inherited by implicit conversion ArrowAssoc from Behavior[T] to ArrowAssoc[Behavior[T]]

Ungrouped