Modifier and Type	Class and Description
pack-priv static class	ObservableDistinctUntilChanged.DistinctUntilChangedObserver<T, K>

Access	Constructor and Description
public	ObservableDistinctUntilChanged(ObservableSource<T> source, Function<? super T, K> keySelector, BiPredicate<? super K, ? super K> comparer)

Modifier and Type	Method and Description
protected void	subscribeActual(Observer<? super T> the incoming Observer, never null observer) Implements abstract io.reactivex.Observable.subscribeActual. Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming `Observer`s.

comparer	back to summary
pack-priv final BiPredicate<? super K, ? super K> comparer

keySelector	back to summary
pack-priv final Function<? super T, K> keySelector

ObservableDistinctUntilChanged	back to summary
public ObservableDistinctUntilChanged(ObservableSource<T> source, Function<? super T, K> keySelector, BiPredicate<? super K, ? super K> comparer)

subscribeActual	back to summary
protected void subscribeActual(Observer<? super T> observer) Implements abstract io.reactivex.Observable.subscribeActual. Doc from io.reactivex.Observable.subscribeActual. Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming `Observer`s. There is no need to call any of the plugin hooks on the current `Observable` instance or the `Observer`; all hooks and basic safeguards have been applied by `subscribe(Observer)` before this method gets called. Parameters observer:Observer<? super T> the incoming Observer, never null Annotations @Override

io.reactivex.internal.operators.observable back to summary

pack-priv final Class ObservableDistinctUntilChanged.DistinctUntilChangedObserver<T, K>

Class Inheritance

java.lang.Object
io.reactivex.internal.observers.BasicFuseableObserver
io.reactivex.internal.operators.observable.ObservableDistinctUntilChanged.DistinctUntilChangedObserver

Field Summary

Modifier and Type	Field and Description
pack-priv final BiPredicate<? super K, ? super K>	comparer
pack-priv boolean	hasValue
pack-priv final Function<? super T, K>	keySelector
pack-priv K	last

Inherited from io.reactivex.internal.observers.BasicFuseableObserver:: done downstream qd sourceMode upstream

Constructor Summary

Access	Constructor and Description
pack-priv	DistinctUntilChangedObserver(Observer<? super T> actual, Function<? super T, K> keySelector, BiPredicate<? super K, ? super K> comparer)

Method Summary

Modifier and Type	Method and Description
public void	onNext(T the item emitted by the Observable t) Implements io.reactivex.Observer.onNext. Provides the Observer with a new item to observe.
public T	poll() Implements io.reactivex.internal.fuseable.SimpleQueue.poll. Tries to dequeue a value (non-null) or returns null if the queue is empty.
public int	requestFusion(int the requested fusion mode, allowed values are `SYNC`, `ASYNC`, `ANY` combined with `BOUNDARY` (e.g., `requestFusion(SYNC \| BOUNDARY)`). mode) Implements io.reactivex.internal.fuseable.QueueFuseable.requestFusion. Request a fusion mode from the upstream.

Inherited from io.reactivex.internal.observers.BasicFuseableObserver:: afterDownstream beforeDownstream clear dispose fail isDisposed isEmpty offer offer onComplete onError onSubscribe transitiveBoundaryFusion

Field Detail

comparer	back to summary
pack-priv final BiPredicate<? super K, ? super K> comparer

hasValue	back to summary
pack-priv boolean hasValue

keySelector	back to summary
pack-priv final Function<? super T, K> keySelector

last	back to summary
pack-priv K last

Constructor Detail

DistinctUntilChangedObserver	back to summary
pack-priv DistinctUntilChangedObserver(Observer<? super T> actual, Function<? super T, K> keySelector, BiPredicate<? super K, ? super K> comparer)

Method Detail

onNext back to summary

onNext	back to summary
public void onNext(T t) Implements io.reactivex.Observer.onNext. Doc from io.reactivex.Observer.onNext. 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 `onComplete` or `onError`. Parameters t:T the item emitted by the Observable Annotations @Override

public void onNext(T t)

Implements io.reactivex.Observer.onNext.

Doc from io.reactivex.Observer.onNext.

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 onComplete or onError.

Parameters

t:T: the item emitted by the Observable

Annotations

@Override

poll back to summary

poll	back to summary
public T poll() throws Exception Implements io.reactivex.internal.fuseable.SimpleQueue.poll. Doc from io.reactivex.internal.fuseable.SimpleQueue.poll. Tries to dequeue a value (non-null) or returns null if the queue is empty. If the producer uses `offer(Object, Object)` and when polling in pairs, if the first poll() returns a non-null item, the second poll() is guaranteed to return a non-null item as well. Returns:T the item or null to indicate an empty queue Annotations @Nullable @Override Exceptions Exception: if some pre-processing of the dequeued item (usually through fused functions) throws.

public T poll() throws Exception

Implements io.reactivex.internal.fuseable.SimpleQueue.poll.

Doc from io.reactivex.internal.fuseable.SimpleQueue.poll.

Tries to dequeue a value (non-null) or returns null if the queue is empty.

If the producer uses offer(Object, Object) and when polling in pairs, if the first poll() returns a non-null item, the second poll() is guaranteed to return a non-null item as well.

Returns:T

the item or null to indicate an empty queue

Annotations

@Nullable
@Override

Exceptions

Exception:: if some pre-processing of the dequeued item (usually through fused functions) throws.

requestFusion back to summary

requestFusion	back to summary
public int requestFusion(int mode) Implements io.reactivex.internal.fuseable.QueueFuseable.requestFusion. Doc from io.reactivex.internal.fuseable.QueueFuseable.requestFusion. Request a fusion mode from the upstream. This should be called before `onSubscribe` returns. Calling this method multiple times or after `onSubscribe` finished is not allowed and may result in undefined behavior. Parameters mode:int the requested fusion mode, allowed values are `SYNC`, `ASYNC`, `ANY` combined with `BOUNDARY` (e.g., `requestFusion(SYNC \| BOUNDARY)`). Returns:int the established fusion mode: `NONE`, `SYNC`, `ASYNC`. Annotations @Override

public int requestFusion(int mode)

Implements io.reactivex.internal.fuseable.QueueFuseable.requestFusion.

Doc from io.reactivex.internal.fuseable.QueueFuseable.requestFusion.

Request a fusion mode from the upstream.

This should be called before onSubscribe returns.

Calling this method multiple times or after onSubscribe finished is not allowed and may result in undefined behavior.

Parameters

mode:int: the requested fusion mode, allowed values are SYNC, ASYNC, ANY combined with BOUNDARY (e.g., requestFusion(SYNC | BOUNDARY)).

Returns:int

the established fusion mode: NONE, SYNC, ASYNC.

Annotations

@Override

public final Class ObservableDistinctUntilChanged<T, K>

Nested and Inner Type Summary

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Field Detail

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Method Detail

pack-priv final Class ObservableDistinctUntilChanged.DistinctUntilChangedObserver<T, K>

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