MaybeSubject (RxJava Javadoc 2.0.8)

java.lang.Object
- io.reactivex.Maybe<T>
- - io.reactivex.subjects.MaybeSubject<T>

Type Parameters:
T - the value type received and emitted

All Implemented Interfaces:

MaybeObserver<T>, MaybeSource<T>
```
public final class MaybeSubject<T>
extends Maybe<T>
implements MaybeObserver<T>
```
Represents a hot Maybe-like source and consumer of events similar to Subjects.
All methods are thread safe. Calling onSuccess or onComplete multiple times has no effect. Calling onError multiple times relays the Throwable to the RxJavaPlugins' error handler.
The MaybeSubject doesn't store the Disposables coming through onSubscribe but disposes them once the other onXXX methods were called (terminal state reached).

Since:

2.0.5 - experimental

Method Summary

Methods
Modifier and Type	Method and Description
`static <T> MaybeSubject<T>`	`create()` Creates a fresh MaybeSubject.
`java.lang.Throwable`	`getThrowable()` Returns the terminal error if this MaybeSubject has been terminated with an error, null otherwise.
`T`	`getValue()` Returns the success value if this MaybeSubject was terminated with a success value.
`boolean`	`hasComplete()` Returns true if this MaybeSubject has been completed.
`boolean`	`hasObservers()` Returns true if this MaybeSubject has observers.
`boolean`	`hasThrowable()` Returns true if this MaybeSubject has been terminated with an error.
`boolean`	`hasValue()` Returns true if this MaybeSubject was terminated with a success value.
`void`	`onComplete()` Called once the deferred computation completes normally.
`void`	`onError(java.lang.Throwable e)` Notifies the MaybeObserver that the `Maybe` has experienced an error condition.
`void`	`onSubscribe(Disposable d)` Provides the MaybeObserver with the means of cancelling (disposing) the connection (channel) with the Maybe in both synchronous (from within `onSubscribe(Disposable)` itself) and asynchronous manner.
`void`	`onSuccess(T value)` Notifies the MaybeObserver with one item and that the `Maybe` has finished sending push-based notifications.
`protected void`	`subscribeActual(MaybeObserver<? super T> observer)` Override this method in subclasses to handle the incoming MaybeObservers.

Methods inherited from class io.reactivex.Maybe
amb, ambArray, ambWith, blockingGet, blockingGet, cache, cast, compose, concat, concat, concat, concat, concat, concat, concatArray, concatArrayDelayError, concatArrayEager, concatDelayError, concatDelayError, concatEager, concatEager, concatMap, concatWith, contains, count, create, defaultIfEmpty, defer, delay, delay, delay, delaySubscription, delaySubscription, delaySubscription, doAfterSuccess, doAfterTerminate, doFinally, doOnComplete, doOnDispose, doOnError, doOnEvent, doOnSubscribe, doOnSuccess, empty, error, error, filter, flatMap, flatMap, flatMap, flatMapCompletable, flatMapObservable, flatMapPublisher, flatMapSingle, flatMapSingleElement, flattenAsFlowable, flattenAsObservable, fromAction, fromCallable, fromCompletable, fromFuture, fromFuture, fromRunnable, fromSingle, hide, ignoreElement, isEmpty, just, lift, map, merge, merge, merge, merge, merge, merge, merge, mergeArray, mergeArrayDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, never, observeOn, ofType, onErrorComplete, onErrorComplete, onErrorResumeNext, onErrorResumeNext, onErrorReturn, onErrorReturnItem, onExceptionResumeNext, onTerminateDetach, repeat, repeat, repeatUntil, repeatWhen, retry, retry, retry, retry, retry, retryUntil, retryWhen, sequenceEqual, sequenceEqual, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, subscribeWith, switchIfEmpty, takeUntil, takeUntil, test, test, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timeout, timer, timer, to, toFlowable, toObservable, toSingle, toSingle, unsafeCreate, unsubscribeOn, using, using, wrap, zip, zip, zip, zip, zip, zip, zip, zip, zip, zipArray, 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> MaybeSubject<T> create()
```
    Creates a fresh MaybeSubject.
    
    Type Parameters:
    T - the value type received and emitted
    
    Returns:
    the new MaybeSubject instance
  - onSubscribe
```
public void onSubscribe(Disposable d)
```
    Description copied from interface: MaybeObserver
    
    Provides the MaybeObserver with the means of cancelling (disposing) the connection (channel) with the Maybe in both synchronous (from within onSubscribe(Disposable) itself) and asynchronous manner.
    
    Specified by:
    
    onSubscribe in interface MaybeObserver<T>
    
    Parameters:
    d - the Disposable instance whose Disposable.dispose() can be called anytime to cancel the connection
  - onSuccess
```
public void onSuccess(T value)
```
    Description copied from interface: MaybeObserver
    
    Notifies the MaybeObserver with one item and that the Maybe has finished sending push-based notifications.
    The Maybe will not call this method if it calls MaybeObserver.onError(java.lang.Throwable).
    
    Specified by:
    
    onSuccess in interface MaybeObserver<T>
    
    Parameters:
    value - the item emitted by the Maybe
  - onError
```
public void onError(java.lang.Throwable e)
```
    Description copied from interface: MaybeObserver
    
    Notifies the MaybeObserver that the Maybe has experienced an error condition.
    If the Maybe calls this method, it will not thereafter call MaybeObserver.onSuccess(T).
    
    Specified by:
    
    onError in interface MaybeObserver<T>
    
    Parameters:
    e - the exception encountered by the Maybe
  - onComplete
```
public void onComplete()
```
    Description copied from interface: MaybeObserver
    
    Called once the deferred computation completes normally.
    
    Specified by:
    
    onComplete in interface MaybeObserver<T>
  - subscribeActual
```
protected void subscribeActual(MaybeObserver<? super T> observer)
```
    Description copied from class: Maybe
    
    Override this method in subclasses to handle the incoming MaybeObservers.
    
    Specified by:
    
    subscribeActual in class Maybe<T>
    
    Parameters:
    observer - the MaybeObserver to handle, not null
  - getValue
```
public T getValue()
```
    Returns the success value if this MaybeSubject was terminated with a success value.
    
    Returns:
    the success value or null
  - hasValue
```
public boolean hasValue()
```
    Returns true if this MaybeSubject was terminated with a success value.
    
    Returns:
    true if this MaybeSubject was terminated with a success value
  - getThrowable
```
public java.lang.Throwable getThrowable()
```
    Returns the terminal error if this MaybeSubject has been terminated with an error, null otherwise.
    
    Returns:
    the terminal error or null if not terminated or not with an error
  - hasThrowable
```
public boolean hasThrowable()
```
    Returns true if this MaybeSubject has been terminated with an error.
    
    Returns:
    true if this MaybeSubject has been terminated with an error
  - hasComplete
```
public boolean hasComplete()
```
    Returns true if this MaybeSubject has been completed.
    
    Returns:
    true if this MaybeSubject has been completed
  - hasObservers
```
public boolean hasObservers()
```
    Returns true if this MaybeSubject has observers.
    
    Returns:
    true if this MaybeSubject has observers

Class MaybeSubject<T>

Method Summary

Methods inherited from class io.reactivex.Maybe

Methods inherited from class java.lang.Object

Method Detail

create

onSubscribe

onSuccess

onError

onComplete

subscribeActual

getValue

hasValue

getThrowable

hasThrowable

hasComplete

hasObservers