monix.reactive.observers

ConnectableSubscriber

final class ConnectableSubscriber[-T] extends 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 ConcurrentSubject 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.pushFirst("a")
// schedule event "b" to be emitted second
obs.pushFirst("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.pushFirst("a") // event "a" to be emitted first
obs.pushFirst("b") // event "b" to be emitted second

// 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]
Linear Supertypes
Subscriber[T], Observer[T], AnyRef, Any
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  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  8. def connect(): Cancelable

    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.

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

    Definition Classes
    AnyRef

  10. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  11. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
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    @throws( classOf[java.lang.Throwable] )

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

    Definition Classes
    AnyRef → Any

  13. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  14. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  16. final def notify(): Unit

    Definition Classes
    AnyRef

  17. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  18. def onComplete(): Unit

    Definition Classes
    ConnectableSubscriber → Observer

  19. def onError(ex: Throwable): Unit

    Definition Classes
    ConnectableSubscriber → Observer

  20. def onNext(elem: T): Future[Ack]

    Definition Classes
    ConnectableSubscriber → Observer

  21. def pushComplete(): Unit

    Emit an item

  22. def pushError(ex: Throwable): Unit

  23. def pushFirst(elems: T*): Unit

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

  24. implicit val scheduler: Scheduler

    Definition Classes
    ConnectableSubscriber → Subscriber

  25. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  26. def toString(): String

    Definition Classes
    AnyRef → Any

  27. final def wait(): Unit

    Definition Classes
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    @throws( ... )

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

    Definition Classes
    AnyRef
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    @throws( ... )

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

    Definition Classes
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    @throws( ... )

Inherited from Subscriber[T]

Inherited from Observer[T]

Inherited from AnyRef

Inherited from Any

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