Package org.reactfx

Class AccumulatingStream<T,U>

java.lang.Object

org.reactfx.ObservableBase<Consumer<? super U>,U>

org.reactfx.EventStreamBase<U>

org.reactfx.AccumulatingStream<T,U>

All Implemented Interfaces:

EventStream<U>, Observable<Consumer<? super U>>, ProperEventStream<U>, ProperObservable<Consumer<? super U>,U>

class AccumulatingStream<T,U>
extends EventStreamBase<U>

See EventStream.accumulate(BiFunction, Function)

Field Summary

Fields

Modifier and Type	Field	Description
private U	event
private boolean	hasEvent
private final Function<? super T,? extends U>	initialTransformation
private final EventStream<T>	input
private final BiFunction<? super U,? super T,? extends U>	reduction

Constructor Summary

Constructors

Constructor	Description
AccumulatingStream(EventStream<T> input, Function<? super T,? extends U> initial, BiFunction<? super U,? super T,? extends U> reduction)

Method Summary

Modifier and Type	Method	Description
protected final Subscription	observeInputs()	Starts observing this observable's input(s), if any.

Methods inherited from class org.reactfx.ObservableBase

addObserver, enqueueNotifications, equals, forEachObserver, getObserverCount, hashCode, isObservingInputs, newObserver, notifyObservers, notifyObservers, observe, removeObserver, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.reactfx.EventStream

accumulate, accumulate, accumulate, accumulateBetween, accumulateBetween, accumulateUntilLater, accumulateUntilLater, accumulateUntilLater, accumulateUntilLater, accumulateWhen, accumulateWhen, accumulative, accumulative, cast, conditionOn, conditionOnShowing, distinct, emitBothOnEach, emitOn, emitOnEach, feedTo, feedTo, filter, filter, filterMap, filterMap, flatMap, forgetful, fork, guardedBy, hook, latestN, map, mapToCompletionStage, mapToTask, onRecurseAccumulate, onRecurseAccumulate, onRecurseQueue, onRecurseReduce, onRecurseRetainLatest, or, pausable, pauseWhen, pin, queueBetween, queueUntilLater, queueUntilLater, reduceBetween, reduceSuccessions, reduceSuccessions, reduceSuccessions, reduceSuccessions, reduceSuccessions, reduceSuccessions, reduceUntilLater, reduceUntilLater, reduceWhen, reducible, repeatOn, retainLatestBetween, retainLatestUntilLater, retainLatestUntilLater, retainLatestWhen, splitBy, subscribe, subscribeFor, subscribeForOne, successionEnds, successionEnds, supply, supply, supplyCompletionStage, supplyTask, suppressible, suppressWhen, suspenderOf, thenAccumulateFor, thenAccumulateFor, thenAccumulateFor, thenAccumulateFor, thenIgnoreFor, thenIgnoreFor, thenReduceFor, thenReduceFor, thenRetainLatestFor, thenRetainLatestFor, threadBridge, threadBridgeFromFx, threadBridgeToFx, toBinding, withDefaultEvent

Methods inherited from interface org.reactfx.Observable

addObserver, observe, removeObserver

Methods inherited from interface org.reactfx.ProperEventStream

defaultNotificationAccumulator, emit

Methods inherited from interface org.reactfx.ProperObservable

defaultEquals, defaultHashCode, defaultToString, notifyObservers

Field Details

input

private final EventStream<T> input

initialTransformation

private final Function<? super T,? extends U> initialTransformation

reduction

private final BiFunction<? super U,? super T,? extends U> reduction

hasEvent

private boolean hasEvent

event

private U event

Constructor Details

AccumulatingStream

public AccumulatingStream(EventStream<T> input,
 Function<? super T,? extends U> initial,
 BiFunction<? super U,? super T,? extends U> reduction)

Method Details

observeInputs

protected final Subscription observeInputs()

Description copied from class: ObservableBase

Starts observing this observable's input(s), if any. This method is called when the number of observers goes from 0 to 1. This method is called before ObservableBase.newObserver(Object) is called for the first observer.

Specified by:

observeInputs in class ObservableBase<Consumer<? super U>,U>

Returns:

subscription used to stop observing inputs. The subscription is unsubscribed (i.e. input observation stops) when the number of observers goes down to 0.