Top Inners Fields Constructors Methods
io.reactivex.internal.operators.flowable

public final Class FlowableFlattenIterable<T, R>

extends AbstractFlowableWithUpstream<T, R>
Class Inheritance
Imports
java.util.Iterator, java.util.concurrent.Callable, java.util.concurrent.atomic.*, org.reactivestreams.*, io.reactivex.*, io.reactivex.annotations.Nullable, io.reactivex.exceptions.*, io.reactivex.functions.Function, io.reactivex.internal.functions.ObjectHelper, io.reactivex.internal.fuseable.*, io.reactivex.internal.queue.SpscArrayQueue, io.reactivex.internal.subscriptions.*, io.reactivex.internal.util.*, io.reactivex.plugins.RxJavaPlugins

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class

Field Summary

Modifier and TypeField and Description
pack-priv final Function<? super T, ? extends Iterable<? extends R>>
pack-priv final int
Inherited from io.reactivex.internal.operators.flowable.AbstractFlowableWithUpstream:
source

Constructor Summary

AccessConstructor and Description
public
FlowableFlattenIterable(Flowable<T> source, Function<? super T, ? extends Iterable<? extends R>> mapper, int prefetch)

Method Summary

Modifier and TypeMethod and Description
public void
subscribeActual(Subscriber<? super R>
the incoming Subscriber, never null
s
)

Implements abstract io.reactivex.Flowable.subscribeActual.

Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming Subscribers.
Inherited from io.reactivex.internal.operators.flowable.AbstractFlowableWithUpstream:
source

Field Detail

mapperback to summary
pack-priv final Function<? super T, ? extends Iterable<? extends R>> mapper
prefetchback to summary
pack-priv final int prefetch

Constructor Detail

FlowableFlattenIterableback to summary
public FlowableFlattenIterable(Flowable<T> source, Function<? super T, ? extends Iterable<? extends R>> mapper, int prefetch)

Method Detail

subscribeActualback to summary
public void subscribeActual(Subscriber<? super R> s)

Implements abstract io.reactivex.Flowable.subscribeActual.

Doc from io.reactivex.Flowable.subscribeActual.

Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming Subscribers.

There is no need to call any of the plugin hooks on the current Flowable instance or the Subscriber; all hooks and basic safeguards have been applied by subscribe(Subscriber) before this method gets called.

Parameters
s:Subscriber<? super R>

the incoming Subscriber, never null

Annotations
@SuppressWarnings:unchecked
@Override
io.reactivex.internal.operators.flowable back to summary

pack-priv final Class FlowableFlattenIterable.FlattenIterableSubscriber<T, R>

extends BasicIntQueueSubscription<R>
implements FlowableSubscriber<T>
Class Inheritance
All Implemented Interfaces
io.reactivex.FlowableSubscriber, org.reactivestreams.Subscriber

Field Summary

Modifier and TypeField and Description
pack-priv volatile boolean
pack-priv int
pack-priv Iterator<? extends R>
pack-priv volatile boolean
pack-priv final Subscriber<? super R>
pack-priv final AtomicReference<Throwable>
pack-priv int
pack-priv final int
pack-priv final Function<? super T, ? extends Iterable<? extends R>>
pack-priv final int
pack-priv SimpleQueue<T>
pack-priv final AtomicLong
private static final long
pack-priv Subscription

Constructor Summary

AccessConstructor and Description
pack-priv
FlattenIterableSubscriber(Subscriber<? super R> actual, Function<? super T, ? extends Iterable<? extends R>> mapper, int prefetch)

Method Summary

Modifier and TypeMethod and Description
public void
cancel()

Implements org.reactivestreams.Subscription.cancel.

Request the Publisher to stop sending data and clean up resources.
pack-priv boolean
checkTerminated(boolean d, boolean empty, Subscriber<?> a, SimpleQueue<?> q)

public void
clear()

Implements io.reactivex.internal.fuseable.SimpleQueue.clear.

Removes all enqueued items from this queue.
pack-priv void
consumedOne(boolean enabled)

pack-priv void
public boolean
isEmpty()

Implements io.reactivex.internal.fuseable.SimpleQueue.isEmpty.

Returns true if the queue is empty.
public void
onComplete()

Implements org.reactivestreams.Subscriber.onComplete.

Successful terminal state.
public void
onError(Throwable
the throwable signaled
t
)

Implements org.reactivestreams.Subscriber.onError.

Failed terminal state.
public void
onNext(T
the element signaled
t
)

Implements org.reactivestreams.Subscriber.onNext.

Data notification sent by the Publisher in response to requests to Subscription#request(long).
public void
onSubscribe(Subscription
the Subscription that allows requesting data via Subscription#request(long)
s
)

Implements io.reactivex.FlowableSubscriber.onSubscribe.

Implementors of this method should make sure everything that needs to be visible in onNext(Object) is established before calling Subscription#request(long).
public R
poll()

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

Tries to dequeue a value (non-null) or returns null if the queue is empty.
public void
request(long
the strictly positive number of elements to requests to the upstream Publisher
n
)

Implements org.reactivestreams.Subscription.request.

No events will be sent by a Publisher until demand is signaled via this method.
public int
requestFusion(int
the requested fusion mode, allowed values are SYNC, ASYNC, ANY combined with BOUNDARY (e.g., requestFusion(SYNC | BOUNDARY)).
requestedMode
)

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

Request a fusion mode from the upstream.
Inherited from io.reactivex.internal.subscriptions.BasicIntQueueSubscription:
offeroffer

Field Detail

cancelledback to summary
pack-priv volatile boolean cancelled
consumedback to summary
pack-priv int consumed
currentback to summary
pack-priv Iterator<? extends R> current
doneback to summary
pack-priv volatile boolean done
downstreamback to summary
pack-priv final Subscriber<? super R> downstream
errorback to summary
pack-priv final AtomicReference<Throwable> error
fusionModeback to summary
pack-priv int fusionMode
limitback to summary
pack-priv final int limit
mapperback to summary
pack-priv final Function<? super T, ? extends Iterable<? extends R>> mapper
prefetchback to summary
pack-priv final int prefetch
queueback to summary
pack-priv SimpleQueue<T> queue
requestedback to summary
pack-priv final AtomicLong requested
serialVersionUIDback to summary
private static final long serialVersionUID

Hides io.reactivex.internal.subscriptions.BasicIntQueueSubscription.serialVersionUID.

upstreamback to summary
pack-priv Subscription upstream

Constructor Detail

FlattenIterableSubscriberback to summary
pack-priv FlattenIterableSubscriber(Subscriber<? super R> actual, Function<? super T, ? extends Iterable<? extends R>> mapper, int prefetch)

Method Detail

cancelback to summary
public void cancel()

Implements org.reactivestreams.Subscription.cancel.

Doc from org.reactivestreams.Subscription.cancel.

Request the Publisher to stop sending data and clean up resources.

Data may still be sent to meet previously signalled demand after calling cancel.

Annotations
@Override
checkTerminatedback to summary
pack-priv boolean checkTerminated(boolean d, boolean empty, Subscriber<?> a, SimpleQueue<?> q)
clearback to summary
public void clear()

Implements io.reactivex.internal.fuseable.SimpleQueue.clear.

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

Removes all enqueued items from this queue.

Annotations
@Override
consumedOneback to summary
pack-priv void consumedOne(boolean enabled)
drainback to summary
pack-priv void drain()
isEmptyback to summary
public boolean isEmpty()

Implements io.reactivex.internal.fuseable.SimpleQueue.isEmpty.

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

Returns true if the queue is empty.

Note however that due to potential fused functions in poll() it is possible this method returns false but then poll() returns null because the fused function swallowed the available item(s).

Returns:boolean

true if the queue is empty

Annotations
@Override
onCompleteback to summary
public void onComplete()

Implements org.reactivestreams.Subscriber.onComplete.

Doc from org.reactivestreams.Subscriber.onComplete.

Successful terminal state.

No further events will be sent even if Subscription#request(long) is invoked again.

Annotations
@Override
onErrorback to summary
public void onError(Throwable t)

Implements org.reactivestreams.Subscriber.onError.

Doc from org.reactivestreams.Subscriber.onError.

Failed terminal state.

No further events will be sent even if Subscription#request(long) is invoked again.

Parameters
t:Throwable

the throwable signaled

Annotations
@Override
onNextback to summary
public void onNext(T t)

Implements org.reactivestreams.Subscriber.onNext.

Doc from org.reactivestreams.Subscriber.onNext.

Data notification sent by the Publisher in response to requests to Subscription#request(long).

Parameters
t:T

the element signaled

Annotations
@Override
onSubscribeback to summary
public void onSubscribe(Subscription s)

Implements io.reactivex.FlowableSubscriber.onSubscribe.

Doc from io.reactivex.FlowableSubscriber.onSubscribe.

Implementors of this method should make sure everything that needs to be visible in onNext(Object) is established before calling Subscription#request(long). In practice this means no initialization should happen after the request() call and additional behavior is thread safe in respect to onNext. Invoked after calling Publisher#subscribe(Subscriber).

No data will start flowing until Subscription#request(long) is invoked.

It is the responsibility of this Subscriber instance to call Subscription#request(long) whenever more data is wanted.

The Publisher will send notifications only in response to Subscription#request(long).

Parameters
s:Subscription

Doc from org.reactivestreams.Subscriber.onSubscribe.

the Subscription that allows requesting data via Subscription#request(long)

Annotations
@Override
pollback to summary
public R 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:R

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.
requestback to summary
public void request(long n)

Implements org.reactivestreams.Subscription.request.

Doc from org.reactivestreams.Subscription.request.

No events will be sent by a Publisher until demand is signaled via this method.

It can be called however often and whenever needed—but if the outstanding cumulative demand ever becomes Long.MAX_VALUE or more, it may be treated by the Publisher as "effectively unbounded".

Whatever has been requested can be sent by the Publisher so only signal demand for what can be safely handled.

A Publisher can send less than is requested if the stream ends but then must emit either Subscriber#onError(Throwable) or Subscriber#onComplete().

Parameters
n:long

the strictly positive number of elements to requests to the upstream Publisher

Annotations
@Override
requestFusionback to summary
public int requestFusion(int requestedMode)

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
requestedMode: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