ConnectableObserver

Wraps an Observer 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: ConnectableObserver[T]

Linear Supertypes

Observer[T], Channel[T], AnyRef, Any

Instance Constructors

new ConnectableObserver(underlying: Observer[T])(implicit context: ExecutionContext)

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def connect(): Unit

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.
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def onComplete(): Unit

Definition Classes
ConnectableObserver → Observer
def onError(ex: Throwable): Unit

Definition Classes
ConnectableObserver → Observer
def onNext(elem: T): Future[Ack]

Definition Classes
ConnectableObserver → Observer
def pushComplete(): Unit

Emit an item
Emit an item

Definition Classes
ConnectableObserver → Channel
def pushError(ex: Throwable): Unit

Ends the stream with an error.
Ends the stream with an error.

Definition Classes
ConnectableObserver → Channel
def pushNext(elems: T*): Unit

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
ConnectableObserver → Channel
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

final class ConnectableObserver[-T] extends Channel[T] with Observer[T]

Instance Constructors

new ConnectableObserver(underlying: Observer[T])(implicit context: ExecutionContext)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def connect(): Unit

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def onComplete(): Unit

def onError(ex: Throwable): Unit

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

def pushComplete(): Unit

def pushError(ex: Throwable): Unit

def pushNext(elems: T*): Unit

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Observer[T]

Inherited from Channel[T]

Inherited from AnyRef

Inherited from Any

Ungrouped