Class ObservableFlatMap.MergeObserver<T,U>

java.lang.Object

java.lang.Number

java.util.concurrent.atomic.AtomicInteger

io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap.MergeObserver<T,U>

All Implemented Interfaces:

Observer<T>, Disposable, Serializable

Enclosing class:

ObservableFlatMap<T,U>

static final class ObservableFlatMap.MergeObserver<T,U>
extends AtomicInteger
implements Disposable, Observer<T>

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	bufferSize
(package private) static final ObservableFlatMap.InnerObserver<?,?>[]	CANCELLED
(package private) final boolean	delayErrors
(package private) boolean	disposed
(package private) boolean	done
(package private) final Observer<? super U>	downstream
(package private) static final ObservableFlatMap.InnerObserver<?,?>[]	EMPTY
(package private) final AtomicThrowable	errors
(package private) int	lastIndex
(package private) final Function<? super T, ? extends ObservableSource<? extends U>>	mapper
(package private) final int	maxConcurrency
(package private) final AtomicReference<ObservableFlatMap.InnerObserver<?,?>[]>	observers
(package private) SimplePlainQueue<U>	queue
private static final long	serialVersionUID
(package private) Queue<ObservableSource<? extends U>>	sources
(package private) long	uniqueId
(package private) Disposable	upstream
(package private) int	wip

Constructor Summary

Constructors

Constructor	Description
MergeObserver(Observer<? super U> actual, Function<? super T, ? extends ObservableSource<? extends U>> mapper, boolean delayErrors, int maxConcurrency, int bufferSize)

Method Summary

Modifier and Type	Method	Description
(package private) boolean	addInner(ObservableFlatMap.InnerObserver<T,U> inner)
(package private) boolean	checkTerminate()
void	dispose()	Dispose the resource, the operation should be idempotent.
(package private) boolean	disposeAll()
(package private) void	drain()
(package private) void	drainLoop()
boolean	isDisposed()	Returns true if this resource has been disposed.
void	onComplete()	Notifies the Observer that the Observable has finished sending push-based notifications.
void	onError(Throwable t)	Notifies the Observer that the Observable has experienced an error condition.
void	onNext(T t)	Provides the Observer with a new item to observe.
void	onSubscribe(Disposable d)	Provides the Observer with the means of cancelling (disposing) the connection (channel) with the Observable in both synchronous (from within Observer.onNext(Object)) and asynchronous manner.
(package private) void	removeInner(ObservableFlatMap.InnerObserver<T,U> inner)
(package private) void	subscribeInner(ObservableSource<? extends U> p)
(package private) void	subscribeMore(int innerCompleted)
(package private) void	tryEmit(U value, ObservableFlatMap.InnerObserver<T,U> inner)
(package private) boolean	tryEmitScalar(Supplier<? extends U> value)

Methods inherited from class AtomicInteger

accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

Methods inherited from class Number

byteValue, shortValue

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

downstream

final Observer<? super U> downstream

mapper

final Function<? super T, ? extends ObservableSource<? extends U>> mapper

delayErrors

final boolean delayErrors

maxConcurrency

final int maxConcurrency

bufferSize

final int bufferSize

queue

volatile SimplePlainQueue<U> queue

done

volatile boolean done

errors

final AtomicThrowable errors

disposed

volatile boolean disposed

observers

final AtomicReference<ObservableFlatMap.InnerObserver<?,?>[]> observers

EMPTY

static final ObservableFlatMap.InnerObserver<?,?>[] EMPTY

CANCELLED

static final ObservableFlatMap.InnerObserver<?,?>[] CANCELLED

upstream

Disposable upstream

uniqueId

long uniqueId

lastIndex

int lastIndex

sources

Queue<ObservableSource<? extends U>> sources

wip

int wip

Constructor Details

MergeObserver

MergeObserver(Observer<? super U> actual,
 Function<? super T, ? extends ObservableSource<? extends U>> mapper,
 boolean delayErrors,
 int maxConcurrency,
 int bufferSize)

Method Details

onSubscribe

public void onSubscribe(Disposable d)

Description copied from interface: Observer

Provides the Observer with the means of cancelling (disposing) the connection (channel) with the Observable in both synchronous (from within Observer.onNext(Object)) and asynchronous manner.

Specified by:

onSubscribe in interface Observer<T>

Parameters:

d - the Disposable instance whose Disposable.dispose() can be called anytime to cancel the connection

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(Throwable).

Specified by:

onNext in interface Observer<T>

Parameters:

t - the item emitted by the Observable

subscribeInner

void subscribeInner(ObservableSource<? extends U> p)

addInner

boolean addInner(ObservableFlatMap.InnerObserver<T,U> inner)

removeInner

void removeInner(ObservableFlatMap.InnerObserver<T,U> inner)

tryEmitScalar

boolean tryEmitScalar(Supplier<? extends U> value)

tryEmit

void tryEmit(U value,
 ObservableFlatMap.InnerObserver<T,U> inner)

onError

public void onError(Throwable t)

Description copied from interface: Observer

Notifies the Observer that the Observable has experienced an error condition.

If the Observable calls this method, it will not thereafter call Observer.onNext(T) or Observer.onComplete().

Specified by:

onError in interface Observer<T>

Parameters:

t - the exception encountered 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(Throwable).

Specified by:

onComplete in interface Observer<T>

dispose

public void dispose()

Description copied from interface: Disposable

Dispose the resource, the operation should be idempotent.

Specified by:

dispose in interface Disposable

isDisposed

public boolean isDisposed()

Description copied from interface: Disposable

Returns true if this resource has been disposed.

Specified by:

isDisposed in interface Disposable

Returns:

true if this resource has been disposed

drain

void drain()

drainLoop

void drainLoop()

subscribeMore

void subscribeMore(int innerCompleted)

checkTerminate

boolean checkTerminate()

disposeAll

boolean disposeAll()