final case class Subscribe[E](subscriber: ActorRef[E])(implicit classTag: ClassTag[E]) extends Command with Product with Serializable
Subscribe a typed actor to listen for types and subtypes of E by sending this command to the akka.actor.typed.ActorSystem.eventStream. The same actor can create multiple subscriptions for different types.
Simple example
sealed trait A case object A1 extends A //listen for all As def subscribe(actorSystem: ActorSystem[_], actorRef: ActorRef[A]) = actorSystem.eventStream ! EventStream.Subscribe(actorRef) //listen for A1s only def subscribe(actorSystem: ActorSystem[_], actorRef: ActorRef[A]) = actorSystem.eventStream ! EventStream.Subscribe[A1](actorRef)
- Source
- EventStream.scala
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- def +(other: String): String
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- def ensuring(cond: (Subscribe[E]) => Boolean, msg: => Any): Subscribe[E]
- def ensuring(cond: (Subscribe[E]) => Boolean): Subscribe[E]
- def ensuring(cond: Boolean, msg: => Any): Subscribe[E]
- def ensuring(cond: Boolean): Subscribe[E]
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- def productElementNames: Iterator[String]
- Definition Classes
- Product
- val subscriber: ActorRef[E]
- final def synchronized[T0](arg0: => T0): T0
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- def finalize(): Unit
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- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Subscribe[E] toStringFormat[Subscribe[E]] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)
instead ofvalue.formatted(formatString)
, or use thef""
string interpolator. In Java 15 and later,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (Subscribe[E], B)
- Implicit
- This member is added by an implicit conversion from Subscribe[E] toArrowAssoc[Subscribe[E]] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
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- @deprecated
- Deprecated
(Since version 2.13.0) Use
->
instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.