Package io.reactivex.rxjava3.internal.jdk8

Class ObservableFirstStageObserver<T>

java.lang.Object

java.util.concurrent.CompletableFuture<T>

io.reactivex.rxjava3.internal.jdk8.ObservableStageObserver<T>

io.reactivex.rxjava3.internal.jdk8.ObservableFirstStageObserver<T>

Type Parameters:

T - the element type

All Implemented Interfaces:

Observer<T>, CompletionStage<T>, Future<T>

public final class ObservableFirstStageObserver<T>
extends ObservableStageObserver<T>

Signals the first element of the source via the underlying CompletableFuture, signals the a default item if the upstream is empty or signals NoSuchElementException.

Since:

3.0.0

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.CompletableFuture

CompletableFuture.AsynchronousCompletionTask

Nested classes/interfaces inherited from interface java.util.concurrent.Future

Future.State

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final T	defaultItem
(package private) final boolean	hasDefault

Fields inherited from class io.reactivex.rxjava3.internal.jdk8.ObservableStageObserver

upstream, value

Constructor Summary

Constructors

Constructor	Description
ObservableFirstStageObserver(boolean hasDefault, T defaultItem)

Method Summary

Modifier and Type	Method	Description
void	onComplete()	Notifies the Observer that the Observable has finished sending push-based notifications.
void	onNext(T t)	Provides the Observer with a new item to observe.

Methods inherited from class io.reactivex.rxjava3.internal.jdk8.ObservableStageObserver

cancel, clear, complete, completeExceptionally, disposeUpstream, onError, onSubscribe

Methods inherited from class java.util.concurrent.CompletableFuture

acceptEither, acceptEitherAsync, acceptEitherAsync, allOf, anyOf, applyToEither, applyToEitherAsync, applyToEitherAsync, completeAsync, completeAsync, completedFuture, completedStage, completeOnTimeout, copy, defaultExecutor, delayedExecutor, delayedExecutor, exceptionally, exceptionallyAsync, exceptionallyAsync, exceptionallyCompose, exceptionallyComposeAsync, exceptionallyComposeAsync, exceptionNow, failedFuture, failedStage, get, get, getNow, getNumberOfDependents, handle, handleAsync, handleAsync, isCancelled, isCompletedExceptionally, isDone, join, minimalCompletionStage, newIncompleteFuture, obtrudeException, obtrudeValue, orTimeout, resultNow, runAfterBoth, runAfterBothAsync, runAfterBothAsync, runAfterEither, runAfterEitherAsync, runAfterEitherAsync, runAsync, runAsync, state, supplyAsync, supplyAsync, thenAccept, thenAcceptAsync, thenAcceptAsync, thenAcceptBoth, thenAcceptBothAsync, thenAcceptBothAsync, thenApply, thenApplyAsync, thenApplyAsync, thenCombine, thenCombineAsync, thenCombineAsync, thenCompose, thenComposeAsync, thenComposeAsync, thenRun, thenRunAsync, thenRunAsync, toCompletableFuture, toString, whenComplete, whenCompleteAsync, whenCompleteAsync

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

hasDefault

final boolean hasDefault

defaultItem

final T defaultItem

Constructor Details

ObservableFirstStageObserver

public ObservableFirstStageObserver(boolean hasDefault,
 T defaultItem)

Method Details

onNext

public void onNext(T t)

Description copied from interface: Observer

Provides the Observer with a new item to observe.

The Observable may call this method 0 or more times.

The Observable will not call this method again after it calls either Observer.onComplete() or Observer.onError(java.lang.Throwable).

Parameters:

t - the item emitted by the Observable

onComplete

public void onComplete()

Description copied from interface: Observer

Notifies the Observer that the Observable has finished sending push-based notifications.

The Observable will not call this method if it calls Observer.onError(java.lang.Throwable).