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akka.actor.typed.scaladsl

AbstractBehavior

abstract class AbstractBehavior[T] extends ExtensibleBehavior[T]

An actor Behavior can be implemented by extending this class and implement the abstract method AbstractBehavior#onMessage and optionally override AbstractBehavior#onSignal. Mutable state can be defined as instance variables of the class.

This is an Object-oriented style of defining a Behavior. A more functional style alternative is provided by the factory methods in Behaviors, for example Behaviors.receiveMessage.

Instances of this behavior should be created via Behaviors.setup and if the ActorContext is needed it can be passed as a constructor parameter from the factory function.

Source
AbstractBehavior.scala
See also

Behaviors.setup

Linear Supertypes
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Inherited
  1. AbstractBehavior
  2. ExtensibleBehavior
  3. Behavior
  4. AnyRef
  5. Any
Implicitly
  1. by BehaviorDecorators
  2. by any2stringadd
  3. by StringFormat
  4. by Ensuring
  5. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new AbstractBehavior()

Abstract Value Members

  1. abstract def onMessage(msg: T): Behavior[T]

    Implement this method to process an incoming message and return the next behavior.

    Implement this method to process an incoming message and return the next behavior.

    The returned behavior can in addition to normal behaviors be one of the canned special objects:

    • returning stopped will terminate this Behavior
    • returning this or same designates to reuse the current Behavior
    • returning unhandled keeps the same Behavior and signals that the message was not yet handled
    Annotations
    @throws( classOf[Exception] )

Concrete 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 AbstractBehavior[T] to any2stringadd[AbstractBehavior[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (AbstractBehavior[T], B)
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to ArrowAssoc[AbstractBehavior[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 AbstractBehavior[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: (AbstractBehavior[T]) ⇒ Boolean, msg: ⇒ Any): AbstractBehavior[T]
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to Ensuring[AbstractBehavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (AbstractBehavior[T]) ⇒ Boolean): AbstractBehavior[T]
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to Ensuring[AbstractBehavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): AbstractBehavior[T]
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to Ensuring[AbstractBehavior[T]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): AbstractBehavior[T]
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to Ensuring[AbstractBehavior[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 AbstractBehavior[T] to StringFormat[AbstractBehavior[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).

    Definition Classes
    Behavior
  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. def onSignal: PartialFunction[Signal, Behavior[T]]

    Override this method to process an incoming akka.actor.typed.Signal and return the next behavior.

    Override this method to process an incoming akka.actor.typed.Signal and return the next behavior. This means that all lifecycle hooks, ReceiveTimeout, Terminated and Failed messages can initiate a behavior change.

    The returned behavior can in addition to normal behaviors be one of the canned special objects:

    * returning stopped will terminate this Behavior * returning this or same designates to reuse the current Behavior * returning unhandled keeps the same Behavior and signals that the message was not yet handled

    By default, partial function is empty and does not handle any signals.

    Annotations
    @throws( classOf[Exception] )
  24. 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.

    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

    Definition Classes
    Behavior
  25. final def receive(ctx: TypedActorContext[T], msg: T): Behavior[T]

    Process an incoming message and return the next behavior.

    Process an incoming message and return the next behavior.

    The returned behavior can in addition to normal behaviors be one of the canned special objects:

    * returning stopped will terminate this Behavior * returning same designates to reuse the current Behavior * returning unhandled keeps the same Behavior and signals that the message was not yet handled

    Code calling this method should use Behavior$ canonicalize to replace the special objects with real Behaviors.

    Definition Classes
    AbstractBehaviorExtensibleBehavior
    Annotations
    @throws( classOf[Exception] )
  26. final def receiveSignal(ctx: TypedActorContext[T], msg: Signal): Behavior[T]

    Process an incoming Signal and return the next behavior.

    Process an incoming Signal and return the next behavior. This means that all lifecycle hooks, ReceiveTimeout, Terminated and Failed messages can initiate a behavior change.

    The returned behavior can in addition to normal behaviors be one of the canned special objects:

    * returning stopped will terminate this Behavior * returning same designates to reuse the current Behavior * returning unhandled keeps the same Behavior and signals that the message was not yet handled

    Code calling this method should use Behavior$ canonicalize to replace the special objects with real Behaviors.

    Definition Classes
    AbstractBehaviorExtensibleBehavior
    Annotations
    @throws( classOf[Exception] )
  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 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 AbstractBehavior[T] to BehaviorDecorators[T] performed by method BehaviorDecorators in akka.actor.typed.Behavior.
    Definition Classes
    BehaviorDecorators
  33. def [B](y: B): (AbstractBehavior[T], B)
    Implicit
    This member is added by an implicit conversion from AbstractBehavior[T] to ArrowAssoc[AbstractBehavior[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 ExtensibleBehavior[T]

Inherited from Behavior[T]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion BehaviorDecorators from AbstractBehavior[T] to BehaviorDecorators[T]

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

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

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

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

Ungrouped