java.lang.Object
- rx.Observable<R>
- - rx.subjects.Subject<T,T>
  - - rx.subjects.PublishSubject<T>

Type Parameters:: T - the type of items observed and emitted by the Subject

All Implemented Interfaces:: Observer<T>

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

Subject that, once an Observer has subscribed, emits all subsequently observed items to the subscriber.

Example usage:

 

  PublishSubject<Object> subject = PublishSubject.create();
  // observer1 will receive all onNext and onCompleted events
  subject.subscribe(observer1);
  subject.onNext("one");
  subject.onNext("two");
  // observer2 will only receive "three" and onCompleted
  subject.subscribe(observer2);
  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>

Field Summary

Fields
Modifier and Type Field Description

private NotificationLite<T> nl

(package private) SubjectSubscriptionManager<T> state

Constructor Summary

Constructors
Modifier Constructor Description

protected PublishSubject(Observable.OnSubscribe<T> onSubscribe, SubjectSubscriptionManager<T> state)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> PublishSubject<T>`	`create()`	Creates and returns a new `PublishSubject`.
`java.lang.Throwable`	`getThrowable()`	Returns the Throwable that terminated the Subject.
`boolean`	`hasCompleted()`	Check if the Subject has terminated normally.
`boolean`	`hasObservers()`	Indicates whether the `Subject` has `Observers` subscribed to it.
`boolean`	`hasThrowable()`	Check if the Subject has terminated with an exception.
`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.subjects.Subject
toSerialized

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, cacheWithInitialCapacity, cast, collect, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatest, combineLatestDelayError, compose, concat, concat, concat, concat, concat, concat, concat, concat, concat, concatDelayError, concatDelayError, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatEager, concatMap, concatMapDelayError, concatMapEager, concatMapEager, concatMapEager, concatMapIterable, concatWith, contains, count, countLong, create, create, create, debounce, debounce, debounce, defaultIfEmpty, defer, delay, delay, delay, delay, delaySubscription, delaySubscription, delaySubscription, delaySubscription, dematerialize, distinct, distinct, distinctUntilChanged, distinctUntilChanged, distinctUntilChanged, doAfterTerminate, doOnCompleted, doOnEach, doOnEach, doOnError, doOnNext, doOnRequest, doOnSubscribe, doOnTerminate, doOnUnsubscribe, elementAt, elementAtOrDefault, empty, error, exists, extend, filter, finallyDo, first, first, firstOrDefault, firstOrDefault, flatMap, flatMap, flatMap, flatMap, flatMap, flatMap, flatMapIterable, flatMapIterable, flatMapIterable, flatMapIterable, forEach, forEach, forEach, from, from, from, from, from, fromAsync, fromCallable, groupBy, groupBy, groupBy, groupJoin, ignoreElements, interval, interval, interval, interval, isEmpty, join, just, just, just, just, just, just, just, just, just, just, last, last, lastOrDefault, lastOrDefault, lift, limit, map, materialize, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, merge, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, nest, never, observeOn, observeOn, observeOn, observeOn, ofType, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureBuffer, onBackpressureDrop, onBackpressureDrop, onBackpressureLatest, onErrorResumeNext, onErrorResumeNext, onErrorReturn, onExceptionResumeNext, onTerminateDetach, publish, publish, range, range, rebatchRequests, 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, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, startWith, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, switchIfEmpty, switchMap, switchMapDelayError, switchOnNext, switchOnNextDelayError, take, take, take, takeFirst, takeLast, takeLast, takeLast, takeLast, takeLast, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeLastBuffer, takeUntil, takeUntil, takeWhile, throttleFirst, throttleFirst, throttleLast, throttleLast, throttleWithTimeout, throttleWithTimeout, timeInterval, timeInterval, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timer, timer, timer, timer, timestamp, timestamp, toBlocking, toCompletable, toList, toMap, toMap, toMap, toMultimap, toMultimap, toMultimap, toMultimap, toSingle, toSortedList, toSortedList, toSortedList, toSortedList, unsafeSubscribe, unsubscribeOn, using, using, window, window, window, window, window, window, window, window, window, window, window, window, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, withLatestFrom, zip, 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

- Field Detail
  - state
```
final SubjectSubscriptionManager<T> state
```
  - nl
```
private final NotificationLite<T> nl
```
- Constructor Detail
  - PublishSubject
```
protected PublishSubject(Observable.OnSubscribe<T> onSubscribe,
                         SubjectSubscriptionManager<T> state)
```
- Method Detail
  - create
```
public static <T> PublishSubject<T> create()
```
    Creates and returns a new PublishSubject.
    
    Type Parameters:
    
    T - the value type
    
    Returns:
    
    the new PublishSubject
  - 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 method 0 or more times.
    The Observable will not call this method again after it calls either Observer.onCompleted() or Observer.onError(java.lang.Throwable).
    
    Parameters:
    
    v - the item emitted by the Observable
  - hasObservers
```
public boolean hasObservers()
```
    Description copied from class: Subject
    
    Indicates whether the Subject has Observers subscribed to it.
    
    Specified by:
    
    hasObservers in class Subject<T,T>
    
    Returns:
    
    true if there is at least one Observer subscribed to this Subject, false otherwise
  - hasThrowable
```
@Beta
public boolean hasThrowable()
```
    Check if the Subject has terminated with an exception.
    
    Returns:
    
    true if the subject has received a throwable through onError.
  - hasCompleted
```
@Beta
public boolean hasCompleted()
```
    Check if the Subject has terminated normally.
    
    Returns:
    
    true if the subject completed normally via onCompleted
  - getThrowable
```
@Beta
public java.lang.Throwable getThrowable()
```
    Returns the Throwable that terminated the Subject.
    
    Returns:
    
    the Throwable that terminated the Subject or null if the subject hasn't terminated yet or it terminated normally.

Modifier and Type	Field	Description
`private NotificationLite<T>`	`nl`
`(package private) SubjectSubscriptionManager<T>`	`state`

Class PublishSubject<T>

Nested Class Summary

Nested classes/interfaces inherited from class rx.Observable

Field Summary

Constructor Summary

Method Summary

Methods inherited from class rx.subjects.Subject

Methods inherited from class rx.Observable

Methods inherited from class java.lang.Object

Field Detail

state

nl

Constructor Detail

PublishSubject

Method Detail

create

onCompleted

onError

onNext

hasObservers

hasThrowable

hasCompleted

getThrowable