Class SerializedProcessor<T>

java.lang.Object

io.reactivex.rxjava3.core.Flowable<T>

io.reactivex.rxjava3.processors.FlowableProcessor<T>

io.reactivex.rxjava3.processors.SerializedProcessor<T>

Type Parameters:

T - the item value type

All Implemented Interfaces:

FlowableSubscriber<T>, org.reactivestreams.Processor<T,T>, org.reactivestreams.Publisher<T>, org.reactivestreams.Subscriber<T>

final class SerializedProcessor<T>
extends FlowableProcessor<T>

Serializes calls to the Subscriber methods.

All other Publisher and Subject methods are thread-safe by design.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final FlowableProcessor<T>	actual	The actual subscriber to serialize Subscriber calls to.
(package private) boolean	done	Indicates a terminal event has been received and all further events will be dropped.
(package private) boolean	emitting	Indicates an emission is going on, guarded by this.
(package private) AppendOnlyLinkedArrayList<Object>	queue	If not null, it holds the missed NotificationLite events.

Constructor Summary

Constructors

Constructor	Description
SerializedProcessor(FlowableProcessor<T> actual)	Constructor that wraps an actual subject.

Method Summary

Modifier and Type	Method	Description
(package private) void	emitLoop()	Loops until all notifications in the queue has been processed.
@Nullable Throwable	getThrowable()	Returns the error that caused the FlowableProcessor to terminate or null if the FlowableProcessor hasn't terminated yet.
boolean	hasComplete()	Returns true if the FlowableProcessor has reached a terminal state through a complete event.
boolean	hasSubscribers()	Returns true if the FlowableProcessor has subscribers.
boolean	hasThrowable()	Returns true if the FlowableProcessor has reached a terminal state through an error event.
void	onComplete()
void	onError(Throwable t)
void	onNext(T t)
void	onSubscribe(org.reactivestreams.Subscription s)	Implementors of this method should make sure everything that needs to be visible in Subscriber.onNext(Object) is established before calling Subscription.request(long).
protected void	subscribeActual(org.reactivestreams.Subscriber<? super T> s)	Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming Subscribers.

Methods inherited from class FlowableProcessor

toSerialized

Methods inherited from class Flowable

all, amb, ambArray, ambWith, any, blockingFirst, blockingFirst, blockingForEach, blockingForEach, blockingIterable, blockingIterable, blockingLast, blockingLast, blockingLatest, blockingMostRecent, blockingNext, blockingSingle, blockingSingle, blockingStream, blockingStream, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, bufferSize, cache, cacheWithInitialCapacity, cast, collect, collect, collectInto, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatestArray, combineLatestArray, combineLatestArrayDelayError, combineLatestArrayDelayError, combineLatestDelayError, combineLatestDelayError, compose, concat, concat, concat, concat, concat, concat, concatArray, concatArrayDelayError, concatArrayEager, concatArrayEager, concatArrayEagerDelayError, concatArrayEagerDelayError, concatDelayError, concatDelayError, concatDelayError, concatEager, concatEager, concatEager, concatEager, concatEagerDelayError, concatEagerDelayError, concatEagerDelayError, concatEagerDelayError, concatMap, concatMap, concatMap, concatMapCompletable, concatMapCompletable, concatMapCompletableDelayError, concatMapCompletableDelayError, concatMapCompletableDelayError, concatMapDelayError, concatMapDelayError, concatMapDelayError, concatMapEager, concatMapEager, concatMapEagerDelayError, concatMapEagerDelayError, concatMapIterable, concatMapIterable, concatMapMaybe, concatMapMaybe, concatMapMaybeDelayError, concatMapMaybeDelayError, concatMapMaybeDelayError, concatMapSingle, concatMapSingle, concatMapSingleDelayError, concatMapSingleDelayError, concatMapSingleDelayError, concatMapStream, concatMapStream, concatWith, concatWith, concatWith, concatWith, contains, count, create, debounce, debounce, debounce, debounce, defaultIfEmpty, defer, delay, delay, delay, delay, delay, delay, delaySubscription, delaySubscription, delaySubscription, dematerialize, distinct, distinct, distinct, distinctUntilChanged, distinctUntilChanged, distinctUntilChanged, doAfterNext, doAfterTerminate, doFinally, doOnCancel, doOnComplete, doOnEach, doOnEach, doOnError, doOnLifecycle, doOnNext, doOnRequest, doOnSubscribe, doOnTerminate, elementAt, elementAt, elementAtOrError, empty, error, error, filter, first, firstElement, firstOrError, firstOrErrorStage, firstStage, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMapCompletable, flatMapCompletable, flatMapIterable, flatMapIterable, flatMapIterable, flatMapIterable, flatMapMaybe, flatMapMaybe, flatMapSingle, flatMapSingle, flatMapStream, flatMapStream, forEach, forEachWhile, forEachWhile, forEachWhile, fromAction, fromArray, fromCallable, fromCompletable, fromCompletionStage, fromFuture, fromFuture, fromIterable, fromMaybe, fromObservable, fromOptional, fromPublisher, fromRunnable, fromSingle, fromStream, fromSupplier, generate, generate, generate, generate, generate, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupJoin, hide, ignoreElements, interval, interval, interval, interval, intervalRange, intervalRange, isEmpty, join, just, just, just, just, just, just, just, just, just, just, last, lastElement, lastOrError, lastOrErrorStage, lastStage, lift, map, mapOptional, materialize, merge, merge, merge, merge, merge, merge, merge, merge, mergeArray, mergeArray, mergeArrayDelayError, mergeArrayDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, mergeWith, mergeWith, mergeWith, never, observeOn, observeOn, observeOn, ofType, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureDrop, onBackpressureDrop, onBackpressureLatest, onBackpressureLatest, onBackpressureReduce, onBackpressureReduce, onErrorComplete, onErrorComplete, onErrorResumeNext, onErrorResumeWith, onErrorReturn, onErrorReturnItem, onTerminateDetach, parallel, parallel, parallel, publish, publish, publish, publish, range, rangeLong, rebatchRequests, reduce, reduce, reduceWith, repeat, repeat, repeatUntil, repeatWhen, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, retry, retry, retry, retry, retry, retryUntil, retryWhen, safeSubscribe, sample, sample, sample, sample, sample, sample, sample, scan, scan, scanWith, sequenceEqual, sequenceEqual, sequenceEqual, sequenceEqual, serialize, share, single, singleElement, singleOrError, singleOrErrorStage, singleStage, skip, skip, skip, skipLast, skipLast, skipLast, skipLast, skipLast, skipLast, skipUntil, skipWhile, sorted, sorted, startWith, startWith, startWith, startWith, startWithArray, startWithItem, startWithIterable, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, subscribeOn, subscribeWith, switchIfEmpty, switchMap, switchMap, switchMapCompletable, switchMapCompletableDelayError, switchMapDelayError, switchMapDelayError, switchMapMaybe, switchMapMaybeDelayError, switchMapSingle, switchMapSingleDelayError, switchOnNext, switchOnNext, switchOnNextDelayError, switchOnNextDelayError, take, take, take, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeUntil, takeUntil, takeWhile, test, test, test, throttleFirst, throttleFirst, throttleFirst, throttleLast, throttleLast, throttleLast, throttleLatest, throttleLatest, throttleLatest, throttleLatest, throttleLatest, throttleWithTimeout, throttleWithTimeout, throttleWithTimeout, timeInterval, timeInterval, timeInterval, timeInterval, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timer, timer, timestamp, timestamp, timestamp, timestamp, to, toFuture, toList, toList, toList, toMap, toMap, toMap, toMultimap, toMultimap, toMultimap, toMultimap, toObservable, toSortedList, toSortedList, toSortedList, toSortedList, unsafeCreate, unsubscribeOn, using, using, window, window, window, window, window, window, window, window, window, window, window, window, window, window, window, window, window, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zipArray, zipWith, zipWith, zipWith, zipWith

Methods inherited from class Object

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

Methods inherited from interface org.reactivestreams.Publisher

subscribe

Field Details

actual

final FlowableProcessor<T> actual

The actual subscriber to serialize Subscriber calls to.

emitting

boolean emitting

Indicates an emission is going on, guarded by this.

queue

AppendOnlyLinkedArrayList<Object> queue

If not null, it holds the missed NotificationLite events.

done

volatile boolean done

Indicates a terminal event has been received and all further events will be dropped.

Constructor Details

SerializedProcessor

SerializedProcessor(FlowableProcessor<T> actual)

Constructor that wraps an actual subject.

Parameters:

actual - the subject wrapped

Method Details

subscribeActual

protected void subscribeActual(org.reactivestreams.Subscriber<? super T> s)

Description copied from class: Flowable

Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming Subscribers.

There is no need to call any of the plugin hooks on the current Flowable instance or the Subscriber; all hooks and basic safeguards have been applied by Flowable.subscribe(Subscriber) before this method gets called.

Specified by:

subscribeActual in class Flowable<T>

Parameters:

s - the incoming Subscriber, never null

onSubscribe

public void onSubscribe(org.reactivestreams.Subscription s)

Description copied from interface: FlowableSubscriber

Implementors of this method should make sure everything that needs to be visible in Subscriber.onNext(Object) is established before calling Subscription.request(long). In practice this means no initialization should happen after the request() call and additional behavior is thread safe in respect to onNext.

onNext

public void onNext(T t)

onError

public void onError(Throwable t)

onComplete

public void onComplete()

emitLoop

void emitLoop()

Loops until all notifications in the queue has been processed.

hasSubscribers

public boolean hasSubscribers()

Description copied from class: FlowableProcessor

Returns true if the FlowableProcessor has subscribers.

The method is thread-safe.

Specified by:

hasSubscribers in class FlowableProcessor<T>

Returns:

true if the FlowableProcessor has subscribers

hasThrowable

public boolean hasThrowable()

Description copied from class: FlowableProcessor

Returns true if the FlowableProcessor has reached a terminal state through an error event.

The method is thread-safe.

Specified by:

hasThrowable in class FlowableProcessor<T>

Returns:

true if the FlowableProcessor has reached a terminal state through an error event

See Also:

• FlowableProcessor.getThrowable()
• FlowableProcessor.hasComplete()

getThrowable

@Nullable
public @Nullable Throwable getThrowable()

Description copied from class: FlowableProcessor

Returns the error that caused the FlowableProcessor to terminate or null if the FlowableProcessor hasn't terminated yet.

The method is thread-safe.

Specified by:

getThrowable in class FlowableProcessor<T>

Returns:

the error that caused the FlowableProcessor to terminate or null if the FlowableProcessor hasn't terminated yet

hasComplete

public boolean hasComplete()

Description copied from class: FlowableProcessor

Returns true if the FlowableProcessor has reached a terminal state through a complete event.

The method is thread-safe.

Specified by:

hasComplete in class FlowableProcessor<T>

Returns:

true if the FlowableProcessor has reached a terminal state through a complete event

See Also:

• FlowableProcessor.hasThrowable()