Class/Object

monifu.reactive.observers

ConnectableSubscriber

Related Docs: object ConnectableSubscriber | package observers

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final class ConnectableSubscriber[-T] extends Channel[T] with Subscriber[T]

Wraps a Subscriber into an implementation that abstains from emitting items until the call to connect() happens. Prior to connect() it's also a Channel into which you can enqueue events for delivery once connect() happens, but before any items emitted by onNext / onComplete and onError.

Example:

val obs = ConnectableObserver(observer)

// schedule onNext event, after connect()
obs.onNext("c")

// schedule event "a" to be emitted first
obs.pushNext("a")
// schedule event "b" to be emitted second
obs.pushNext("b")

// underlying observer now gets events "a", "b", "c" in order
obs.connect()

Example of an observer ended in error:

val obs = ConnectableObserver(observer)

// schedule onNext event, after connect()
obs.onNext("c")

obs.pushNext("a") // event "a" to be emitted first
obs.pushNext("b") // event "b" to be emitted first

// schedule an onError sent downstream, once connect()
// happens, but after "a" and "b"
obs.pushError(new RuntimeException())

// underlying observer receives ...
// onNext("a") -> onNext("b") -> onError(RuntimeException)
obs.connect()

// NOTE: that onNext("c") never happens
Self Type
ConnectableSubscriber[T]
Source
ConnectableSubscriber.scala
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  1. ConnectableSubscriber
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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    @throws( ... )
  6. def connect(): Unit

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    Connects the underling observer to the upstream publisher.

    Connects the underling observer to the upstream publisher.

    This function should be idempotent. Calling it multiple times should have the same effect as calling it once.

  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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  13. final def ne(arg0: AnyRef): Boolean

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  14. final def notify(): Unit

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  15. final def notifyAll(): Unit

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  16. def onComplete(): Unit

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    Definition Classes
    ConnectableSubscriberObserver
  17. def onError(ex: Throwable): Unit

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    Definition Classes
    ConnectableSubscriberObserver
  18. def onNext(elem: T): Future[Ack]

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    Definition Classes
    ConnectableSubscriberObserver
  19. def pushComplete(): Unit

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    Emit an item

    Emit an item

    Definition Classes
    ConnectableSubscriberChannel
  20. def pushError(ex: Throwable): Unit

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    Ends the stream with an error.

    Ends the stream with an error.

    Definition Classes
    ConnectableSubscriberChannel
  21. def pushNext(elems: T*): Unit

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    Emit an item immediately to the underlying observer, after previous pushNext() events, but before any events emitted through onNext.

    Emit an item immediately to the underlying observer, after previous pushNext() events, but before any events emitted through onNext.

    Definition Classes
    ConnectableSubscriberChannel
  22. implicit def scheduler: Scheduler

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    Definition Classes
    ConnectableSubscriberSubscriber
  23. final def synchronized[T0](arg0: ⇒ T0): T0

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  24. def toString(): String

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  25. final def wait(): Unit

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  26. final def wait(arg0: Long, arg1: Int): Unit

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  27. final def wait(arg0: Long): Unit

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Inherited from Subscriber[T]

Inherited from Observer[T]

Inherited from Channel[T]

Inherited from AnyRef

Inherited from Any

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