Subscriber

An extension of the Observer trait which adds subscription handling (unsubscribe, isUnsubscribed, and add methods) and backpressure handling (onStart and request methods).

Similarly to the RxJava Subscriber, this class has two constructors:

The first constructor takes as argument the child Subscriber from further down the pipeline and is usually only needed together with lift:

myObservable.lift((subscriber: Subscriber[T]) => new Subscriber[T](subscriber) {
  override def onStart(): Unit = ...
  override def onNext(n: T): Unit = ...
  override def onError(e: Throwable): Unit = ...
  override def onCompleted(): Unit = ...
})

The second constructor takes no arguments and is typically used with the subscribe method:

myObservable.subscribe(new Subscriber[T] {
  override def onStart(): Unit = ...
  override def onNext(n: T): Unit = ...
  override def onError(e: Throwable): Unit = ...
  override def onCompleted(): Unit = ...
})

Notice that these two constructors are not (as usually in Scala) in the companion object, because if they were, we couldn't create anonymous classes implementing onStart/onNext/onError/onCompleted as in the examples above. However, there are more constructors in the companion object, which allow you to construct Subscribers from given onNext/onError/onCompleted lambdas.

Self Type: Subscriber[T]

Linear Supertypes

Subscription, Observer[T], AnyRef, Any

Instance Constructors

new Subscriber()
new Subscriber(subscriber: Subscriber[_])

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 add(u: ⇒ Unit): Unit

Register a callback to be run when Subscriber is unsubscribed
Register a callback to be run when Subscriber is unsubscribed
u
callback to run when unsubscribed
final def add(s: Subscription): Unit

Used to register an unsubscribe callback.
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

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

Checks if the subscription is unsubscribed.
Checks if the subscription is unsubscribed.

Definition Classes
Subscriber → Subscription
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def onCompleted(): Unit

Notifies the Observer that the rx.lang.scala.Observable has finished sending push-based notifications.
Notifies the Observer that the rx.lang.scala.Observable has finished sending push-based notifications.
The rx.lang.scala.Observable will not call this method if it calls onError.

Definition Classes
Observer
def onError(error: Throwable): Unit

Notifies the Observer that the rx.lang.scala.Observable has experienced an error condition.
Notifies the Observer that the rx.lang.scala.Observable has experienced an error condition.
If the rx.lang.scala.Observable calls this method, it will not thereafter call onNext or onCompleted.

Definition Classes
Observer
def onNext(value: T): Unit

Provides the Observer with new data.
Provides the Observer with new data.
The rx.lang.scala.Observable calls this closure 0 or more times.
The rx.lang.scala.Observable will not call this method again after it calls either onCompleted or onError.

Definition Classes
Observer
def onStart(): Unit
final def request(n: Long): Unit

Attributes
protected[this]
def setProducer(producer: (Long) ⇒ Unit): Unit
def setProducer(producer: Producer): Unit
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

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

Call this method to stop receiving notifications on the Observer that was registered when this Subscription was received.
Call this method to stop receiving notifications on the Observer that was registered when this Subscription was received.

Definition Classes
Subscriber → Subscription
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( ... )

abstract class Subscriber[-T] extends Observer[T] with Subscription

Instance Constructors

new Subscriber()

new Subscriber(subscriber: Subscriber[_])

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def add(u: ⇒ Unit): Unit

final def add(s: Subscription): Unit

final def asInstanceOf[T0]: T0

def clone(): AnyRef

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 isUnsubscribed: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def onCompleted(): Unit

def onError(error: Throwable): Unit

def onNext(value: T): Unit

def onStart(): Unit

final def request(n: Long): Unit

def setProducer(producer: (Long) ⇒ Unit): Unit

def setProducer(producer: Producer): Unit

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

def toString(): String

final def unsubscribe(): Unit

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Subscription

Inherited from Observer[T]

Inherited from AnyRef

Inherited from Any

Ungrouped