rx.subjects

Class AsyncSubject<T>

java.lang.Object

rx.Observable<R>

rx.subjects.Subject<T,T>

rx.subjects.AsyncSubject<T>

Type Parameters:

T - the type of item expected to be observed by the Subject

All Implemented Interfaces:

Observer<T>

public final class AsyncSubject<T>
extends Subject<T,T>

Subject that publishes only the last item observed to each Observer that has subscribed, when the source Observable completes.

Example usage:

 // observer will receive no onNext events because the subject.onCompleted() isn't called.
  AsyncSubject<Object> subject = AsyncSubject.create();
  subject.subscribe(observer);
  subject.onNext("one");
  subject.onNext("two");
  subject.onNext("three");

  // observer will receive "three" as the only onNext event.
  AsyncSubject<Object> subject = AsyncSubject.create();
  subject.subscribe(observer);
  subject.onNext("one");
  subject.onNext("two");
  subject.onNext("three");
  subject.onCompleted();

   

Nested Class Summary

Nested classes/interfaces inherited from class rx.Observable

Observable.OnSubscribe<T>, Observable.Operator<R,T>, Observable.Transformer<T,R>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AsyncSubject(Observable.OnSubscribe<T> onSubscribe, rx.subjects.SubjectSubscriptionManager<T> state)

Method Summary

Methods

Modifier and Type	Method and Description
static <T> AsyncSubject<T>	create() Creates and returns a new AsyncSubject.
void	onCompleted() Notifies the Observer that the Observable has finished sending push-based notifications.
void	onError(java.lang.Throwable e) Notifies the Observer that the Observable has experienced an error condition.
void	onNext(T v) Provides the Observer with a new item to observe.

Methods inherited from class rx.Observable

all, amb, amb, amb, amb, amb, amb, amb, amb, amb, ambWith, asObservable, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, cache, cache, cast, collect, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, compose, concat, concat, concat, concat, concat, concat, concat, concat, concat, concatMap, concatWith, contains, count, create, debounce, debounce, debounce, defaultIfEmpty, defer, delay, delay, delay, delay, delaySubscription, delaySubscription, dematerialize, distinct, distinct, distinctUntilChanged, distinctUntilChanged, doOnCompleted, doOnEach, doOnEach, doOnError, doOnNext, doOnSubscribe, doOnTerminate, doOnUnsubscribe, elementAt, elementAtOrDefault, empty, error, exists, filter, finallyDo, first, first, firstOrDefault, firstOrDefault, flatMap, flatMap, flatMap, flatMapIterable, flatMapIterable, forEach, forEach, forEach, from, from, from, from, from, groupBy, groupBy, groupByUntil, groupByUntil, groupJoin, ignoreElements, interval, interval, isEmpty, join, just, just, just, just, just, just, just, just, just, just, last, last, lastOrDefault, lastOrDefault, lift, limit, longCount, map, materialize, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, multicast, multicast, nest, never, observeOn, ofType, onBackpressureBuffer, onBackpressureDrop, onErrorResumeNext, onErrorResumeNext, onErrorReturn, onExceptionResumeNext, parallel, parallel, publish, publish, publish, publish, publishLast, publishLast, range, range, reduce, reduce, repeat, repeat, repeat, repeat, repeatWhen, repeatWhen, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, replay, retry, retry, retry, retryWhen, retryWhen, sample, sample, sample, scan, scan, sequenceEqual, sequenceEqual, serialize, share, single, single, singleOrDefault, singleOrDefault, skip, skip, skip, skipLast, skipLast, skipLast, skipUntil, skipWhile, skipWhileWithIndex, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, switchMap, switchOnNext, take, take, take, takeFirst, takeLast, takeLast, takeLast, takeLast, takeLast, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeUntil, takeWhile, takeWhileWithIndex, throttleFirst, throttleFirst, throttleLast, throttleLast, throttleWithTimeout, throttleWithTimeout, timeInterval, timeInterval, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timer, timer, timer, timer, timestamp, timestamp, toBlocking, toList, toMap, toMap, toMap, toMultimap, toMultimap, toMultimap, toMultimap, toSortedList, toSortedList, unsafeSubscribe, unsubscribeOn, using, window, window, window, window, window, window, window, window, window, window, window, window, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zipWith, zipWith

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncSubject

protected AsyncSubject(Observable.OnSubscribe<T> onSubscribe,
            rx.subjects.SubjectSubscriptionManager<T> state)

Method Detail

create

public static <T> AsyncSubject<T> create()

Creates and returns a new AsyncSubject.

Type Parameters:

T - the result value type

Returns:

the new AsyncSubject

onCompleted

public void onCompleted()

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).

onError

public void onError(java.lang.Throwable e)

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.onCompleted().

Parameters:

e - the exception encountered by the Observable

onNext

public void onNext(T v)

Description copied from interface: Observer

Provides the Observer with a new item to observe.

The Observable may call this closure 0 or more times.

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

Parameters:

v - the item emitted by the Observable