AsyncSubject (RxJava Javadoc 2.0.8)

java.lang.Object
- io.reactivex.Observable<T>
- - io.reactivex.subjects.Subject<T>
  - - io.reactivex.subjects.AsyncSubject<T>

Type Parameters:
T - the value type

All Implemented Interfaces:

ObservableSource<T>, Observer<T>
```
public final class AsyncSubject<T>
extends Subject<T>
```
An Subject that emits the very last value followed by a completion event or the received error to Observers.
The implementation of onXXX methods are technically thread-safe but non-serialized calls to them may lead to undefined state in the currently subscribed Observers.

Method Summary

Methods
Modifier and Type	Method and Description
`static <T> AsyncSubject<T>`	`create()` Creates a new AsyncProcessor.
`java.lang.Throwable`	`getThrowable()` Returns the error that caused the Subject to terminate or null if the Subject hasn't terminated yet.
`T`	`getValue()` Returns a single value the Subject currently has or null if no such value exists.
`java.lang.Object[]`	`getValues()` Returns an Object array containing snapshot all values of the Subject.
`T[]`	`getValues(T[] array)` Returns a typed array containing a snapshot of all values of the Subject.
`boolean`	`hasComplete()` Returns true if the subject has reached a terminal state through a complete event.
`boolean`	`hasObservers()` Returns true if the subject has any Observers.
`boolean`	`hasThrowable()` Returns true if the subject has reached a terminal state through an error event.
`boolean`	`hasValue()` Returns true if the subject has any value.
`void`	`onComplete()` Notifies the Observer that the `Observable` has finished sending push-based notifications.
`void`	`onError(java.lang.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 s)` 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.
`protected void`	`subscribeActual(Observer<? super T> s)` Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic.

Methods inherited from class io.reactivex.subjects.Subject
toSerialized

Methods inherited from class io.reactivex.Observable
all, amb, ambArray, ambWith, any, blockingFirst, blockingFirst, blockingForEach, blockingIterable, blockingIterable, blockingLast, blockingLast, blockingLatest, blockingMostRecent, blockingNext, blockingSingle, blockingSingle, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, buffer, bufferSize, cache, cacheWithInitialCapacity, cast, collect, collectInto, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatestDelayError, combineLatestDelayError, combineLatestDelayError, combineLatestDelayError, combineLatestDelayError, compose, concat, concat, concat, concat, concat, concat, concatArray, concatArrayDelayError, concatArrayEager, concatArrayEager, concatDelayError, concatDelayError, concatDelayError, concatEager, concatEager, concatEager, concatEager, concatMap, concatMap, concatMapDelayError, concatMapDelayError, concatMapEager, concatMapEager, concatMapEagerDelayError, concatMapEagerDelayError, concatMapIterable, concatMapIterable, concatWith, contains, count, create, debounce, debounce, debounce, defaultIfEmpty, defer, delay, delay, delay, delay, delay, delay, delaySubscription, delaySubscription, delaySubscription, dematerialize, distinct, distinct, distinct, distinctUntilChanged, distinctUntilChanged, distinctUntilChanged, doAfterNext, doAfterTerminate, doFinally, doOnComplete, doOnDispose, doOnEach, doOnEach, doOnError, doOnLifecycle, doOnNext, doOnSubscribe, doOnTerminate, elementAt, elementAt, elementAtOrError, empty, error, error, filter, first, firstElement, firstOrError, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMapCompletable, flatMapCompletable, flatMapIterable, flatMapIterable, flatMapMaybe, flatMapMaybe, flatMapSingle, flatMapSingle, forEach, forEachWhile, forEachWhile, forEachWhile, fromArray, fromCallable, fromFuture, fromFuture, fromFuture, fromFuture, fromIterable, fromPublisher, generate, generate, generate, generate, generate, 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, lift, map, materialize, merge, merge, merge, merge, merge, merge, merge, merge, mergeArray, mergeArray, mergeArrayDelayError, mergeArrayDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, never, observeOn, observeOn, observeOn, ofType, onErrorResumeNext, onErrorResumeNext, onErrorReturn, onErrorReturnItem, onExceptionResumeNext, onTerminateDetach, publish, publish, range, rangeLong, reduce, reduce, reduceWith, repeat, repeat, repeatUntil, repeatWhen, 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, scan, scan, scanWith, sequenceEqual, sequenceEqual, sequenceEqual, sequenceEqual, serialize, share, single, singleElement, singleOrError, skip, skip, skip, skipLast, skipLast, skipLast, skipLast, skipLast, skipLast, skipUntil, skipWhile, sorted, sorted, startWith, startWith, startWith, startWithArray, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, subscribeWith, switchIfEmpty, switchMap, switchMap, switchMapDelayError, switchMapDelayError, switchMapSingle, switchMapSingleDelayError, switchOnNext, switchOnNext, switchOnNextDelayError, switchOnNextDelayError, take, take, take, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeLast, takeUntil, takeUntil, takeWhile, test, test, throttleFirst, throttleFirst, throttleLast, throttleLast, throttleWithTimeout, throttleWithTimeout, timeInterval, timeInterval, timeInterval, timeInterval, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timer, timer, timestamp, timestamp, timestamp, timestamp, to, toFlowable, toFuture, toList, toList, toList, toMap, toMap, toMap, toMultimap, toMultimap, toMultimap, toMultimap, 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, window, window, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, wrap, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zip, zipArray, zipIterable, zipWith, zipWith, zipWith, zipWith

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - create
```
@CheckReturnValue
public static <T> AsyncSubject<T> create()
```
    Creates a new AsyncProcessor.
    
    Type Parameters:
    T - the value type to be received and emitted
    
    Returns:
    the new AsyncProcessor instance
  - onSubscribe
```
public void onSubscribe(Disposable s)
```
    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.
    
    Parameters:
    s - 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(java.lang.Throwable).
    
    Parameters:
    t - the item emitted by the Observable
  - onError
```
public void onError(java.lang.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().
    
    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(java.lang.Throwable).
  - hasObservers
```
public boolean hasObservers()
```
    Description copied from class: Subject
    
    Returns true if the subject has any Observers.
    The method is thread-safe.
    
    Specified by:
    
    hasObservers in class Subject<T>
    
    Returns:
    true if the subject has any Observers
  - hasThrowable
```
public boolean hasThrowable()
```
    Description copied from class: Subject
    
    Returns true if the subject has reached a terminal state through an error event.
    The method is thread-safe.
    
    Specified by:
    
    hasThrowable in class Subject<T>
    
    Returns:
    true if the subject has reached a terminal state through an error event
    See Also:
    &see {@link #hasComplete()}
  - hasComplete
```
public boolean hasComplete()
```
    Description copied from class: Subject
    
    Returns true if the subject has reached a terminal state through a complete event.
    The method is thread-safe.
    
    Specified by:
    
    hasComplete in class Subject<T>
    
    Returns:
    true if the subject has reached a terminal state through a complete event
    See Also:
    Subject.hasThrowable()
  - getThrowable
```
public java.lang.Throwable getThrowable()
```
    Description copied from class: Subject
    
    Returns the error that caused the Subject to terminate or null if the Subject hasn't terminated yet.
    The method is thread-safe.
    
    Specified by:
    
    getThrowable in class Subject<T>
    
    Returns:
    the error that caused the Subject to terminate or null if the Subject hasn't terminated yet
  - subscribeActual
```
protected void subscribeActual(Observer<? super T> s)
```
    Description copied from class: Observable
    
    Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic.
    There is no need to call any of the plugin hooks on the current Observable instance or the Subscriber.
    
    Specified by:
    
    subscribeActual in class Observable<T>
    
    Parameters:
    s - the incoming Observer, never null
  - hasValue
```
public boolean hasValue()
```
    Returns true if the subject has any value.
    The method is thread-safe.
    
    Returns:
    true if the subject has any value
  - getValue
```
public T getValue()
```
    Returns a single value the Subject currently has or null if no such value exists.
    The method is thread-safe.
    
    Returns:
    a single value the Subject currently has or null if no such value exists
  - getValues
```
public java.lang.Object[] getValues()
```
    Returns an Object array containing snapshot all values of the Subject.
    The method is thread-safe.
    
    Returns:
    the array containing the snapshot of all values of the Subject
  - getValues
```
public T[] getValues(T[] array)
```
    Returns a typed array containing a snapshot of all values of the Subject.
    The method follows the conventions of Collection.toArray by setting the array element after the last value to null (if the capacity permits).
    The method is thread-safe.
    
    Parameters:
    array - the target array to copy values into if it fits
    
    Returns:
    the given array if the values fit into it or a new array containing all values

Class AsyncSubject<T>

Method Summary

Methods inherited from class io.reactivex.subjects.Subject

Methods inherited from class io.reactivex.Observable

Methods inherited from class java.lang.Object

Method Detail

create

onSubscribe

onNext

onError

onComplete

hasObservers

hasThrowable

hasComplete

getThrowable

subscribeActual

hasValue

getValue

getValues

getValues