Top Description Inners Fields Constructors Methods
reactor.core.publisher

pack-priv final Class FluxSwitchMap<T, R>

extends InternalFluxOperator<T, R>
Class Inheritance
Type Parameters
<T>
the source value type
<R>
the output value type
Imports
java.util.Objects, .Queue, java.util.concurrent.atomic.AtomicIntegerFieldUpdater, .AtomicLongFieldUpdater, .AtomicReferenceFieldUpdater, java.util.function.BiPredicate, .Function, .Supplier, java.util.stream.Stream, org.reactivestreams.Publisher, .Subscriber, .Subscription, reactor.core.CoreSubscriber, .Exceptions, .Scannable, reactor.util.annotation.Nullable, reactor.util.context.Context

Switches to a new Publisher generated via a function whenever the upstream produces an item.
See Also
Reactive-Streams-Commons

Nested and Inner Type Summary

Modifier and TypeClass and Description
pack-priv static class
pack-priv static class

Field Summary

Modifier and TypeField and Description
pack-priv static final FluxSwitchMap.SwitchMapInner<Object>
pack-priv final Function<? super T, ? extends Publisher<? extends R>>
pack-priv final int
pack-priv final Supplier<? extends Queue<Object>>
Inherited from reactor.core.publisher.InternalFluxOperator:
optimizableOperator

Constructor Summary

AccessConstructor and Description
pack-priv
FluxSwitchMap(Flux<? extends T> source, Function<? super T, ? extends Publisher<? extends R>> mapper, Supplier<? extends Queue<Object>> queueSupplier, int prefetch)

Method Summary

Modifier and TypeMethod and Description
public int
getPrefetch()

Overrides reactor.core.publisher.Flux.getPrefetch.

The prefetch configuration of the Flux
public Object
scanUnsafe(Scannable.Attr<T>
a Attr to resolve for the component.
key
)

Overrides reactor.core.publisher.InternalFluxOperator.scanUnsafe.

Implements reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place.
public CoreSubscriber<? super T>
subscribeOrReturn(CoreSubscriber<? super R> actual)

Implements abstract reactor.core.publisher.InternalFluxOperator.subscribeOrReturn.

Implements reactor.core.publisher.OptimizableOperator.subscribeOrReturn.

Allow delegation of the subscription by returning a CoreSubscriber, or force subscription encapsulation by returning null.
Inherited from reactor.core.publisher.InternalFluxOperator:
nextOptimizableSourcesourcesubscribe

Field Detail

CANCELLED_INNERback to summary
pack-priv static final FluxSwitchMap.SwitchMapInner<Object> CANCELLED_INNER
Annotations
@SuppressWarnings:ConstantConditions
mapperback to summary
pack-priv final Function<? super T, ? extends Publisher<? extends R>> mapper
prefetchback to summary
pack-priv final int prefetch
queueSupplierback to summary
pack-priv final Supplier<? extends Queue<Object>> queueSupplier

Constructor Detail

FluxSwitchMapback to summary
pack-priv FluxSwitchMap(Flux<? extends T> source, Function<? super T, ? extends Publisher<? extends R>> mapper, Supplier<? extends Queue<Object>> queueSupplier, int prefetch)

Method Detail

getPrefetchback to summary
public int getPrefetch()

Overrides reactor.core.publisher.Flux.getPrefetch.

Doc from reactor.core.publisher.Flux.getPrefetch.

The prefetch configuration of the Flux

Returns:int

the prefetch configuration of the Flux, -1 if unspecified

Annotations
@Override
scanUnsafeback to summary
public Object scanUnsafe(Scannable.Attr<T> key)

Overrides reactor.core.publisher.InternalFluxOperator.scanUnsafe.

Implements reactor.core.Scannable.scanUnsafe.

Doc from reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place. Although it is ignoring the generic type of the Attr key, implementors should take care to return values of the correct type, and return null if no specific value is available.

For public consumption of attributes, prefer using scan(Attr), which will return a typed value and fall back to the key's default if the component didn't define any mapping.

Parameters
key:Scannable.Attr<T>

a Attr to resolve for the component.

Returns:Object

the value associated to the key for that specific component, or null if none.

Annotations
@Override
subscribeOrReturnback to summary
public CoreSubscriber<? super T> subscribeOrReturn(CoreSubscriber<? super R> actual)

Implements abstract reactor.core.publisher.InternalFluxOperator.subscribeOrReturn.

Implements reactor.core.publisher.OptimizableOperator.subscribeOrReturn.

Doc from reactor.core.publisher.OptimizableOperator.subscribeOrReturn.

Allow delegation of the subscription by returning a CoreSubscriber, or force subscription encapsulation by returning null. This can be used in conjunction with nextOptimizableSource() to perform subscription in a loop instead of by recursion.

Returns:CoreSubscriber<? super T>

next CoreSubscriber or "null" if the subscription was already done inside the method

Annotations
@Override
reactor.core.publisher back to summary

pack-priv final Class FluxSwitchMap.SwitchMapInner<R>

extends Object
implements InnerConsumer<R>, Subscription
Class Inheritance
All Implemented Interfaces
org.reactivestreams.Subscription, reactor.core.publisher.InnerConsumer, reactor.core.Scannable, reactor.core.CoreSubscriber, org.reactivestreams.Subscriber

Field Summary

Modifier and TypeField and Description
pack-priv final long
pack-priv final int
pack-priv volatile int
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapInner<R>>
pack-priv final FluxSwitchMap.SwitchMapMain<?, R>
pack-priv final int
pack-priv int
pack-priv volatile Subscription
s

pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapInner<R>, Subscription>
S

Constructor Summary

AccessConstructor and Description
pack-priv
SwitchMapInner(FluxSwitchMap.SwitchMapMain<?, R> parent, int prefetch, long index)

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.
public Context
currentContext()

Overrides default reactor.core.CoreSubscriber.currentContext.

Request a Context from dependent components which can include downstream operators during subscribing or a terminal org.reactivestreams.Subscriber.
pack-priv void
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(R
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 reactor.core.CoreSubscriber.onSubscribe.

Implementors should initialize any state used by onNext(Object) before calling Subscription#request(long).
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.
pack-priv void
public Object
scanUnsafe(Scannable.Attr<T>
a Attr to resolve for the component.
key
)

Implements reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place.
Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

indexback to summary
pack-priv final long index
limitback to summary
pack-priv final int limit
onceback to summary
pack-priv volatile int once
ONCEback to summary
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapInner<R>> ONCE
Annotations
@SuppressWarnings:rawtypes
parentback to summary
pack-priv final FluxSwitchMap.SwitchMapMain<?, R> parent
prefetchback to summary
pack-priv final int prefetch
producedback to summary
pack-priv int produced
sback to summary
pack-priv volatile Subscription s
Sback to summary
pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapInner<R>, Subscription> S
Annotations
@SuppressWarnings:rawtypes

Constructor Detail

SwitchMapInnerback to summary
pack-priv SwitchMapInner(FluxSwitchMap.SwitchMapMain<?, R> parent, int prefetch, long index)

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
currentContextback to summary
public Context currentContext()

Overrides default reactor.core.CoreSubscriber.currentContext.

Doc from reactor.core.CoreSubscriber.currentContext.

Request a Context from dependent components which can include downstream operators during subscribing or a terminal org.reactivestreams.Subscriber.

Returns:Context

a resolved context or Context#empty()

Annotations
@Override
deactivateback to summary
pack-priv void deactivate()
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(R 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:R

the element signaled

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

Implements reactor.core.CoreSubscriber.onSubscribe.

Doc from reactor.core.CoreSubscriber.onSubscribe.

Implementors should initialize any state used by onNext(Object) before calling Subscription#request(long). Should further onNext related state modification occur, thread-safety will be required.

Note that an invalid request <= 0 will not produce an onError and will simply be ignored or reported through a debug-enabled reactor.util.Logger. 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
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
requestOneback to summary
pack-priv void requestOne()
scanUnsafeback to summary
public Object scanUnsafe(Scannable.Attr<T> key)

Implements reactor.core.Scannable.scanUnsafe.

Doc from reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place. Although it is ignoring the generic type of the Attr key, implementors should take care to return values of the correct type, and return null if no specific value is available.

For public consumption of attributes, prefer using scan(Attr), which will return a typed value and fall back to the key's default if the component didn't define any mapping.

Parameters
key:Scannable.Attr<T>

a Attr to resolve for the component.

Returns:Object

the value associated to the key for that specific component, or null if none.

Annotations
@Override
@Nullable
reactor.core.publisher back to summary

pack-priv final Class FluxSwitchMap.SwitchMapMain<T, R>

extends Object
implements InnerOperator<T, R>
Class Inheritance
All Implemented Interfaces
reactor.core.publisher.InnerOperator, reactor.core.publisher.InnerProducer, org.reactivestreams.Subscription, reactor.core.Scannable, reactor.core.publisher.InnerConsumer, reactor.core.CoreSubscriber, org.reactivestreams.Subscriber

Field Summary

Modifier and TypeField and Description
pack-priv volatile int
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>>
pack-priv final CoreSubscriber<? super R>
pack-priv volatile boolean
pack-priv volatile boolean
pack-priv volatile Throwable
pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>, Throwable>
pack-priv volatile long
pack-priv static final AtomicLongFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>>
pack-priv volatile FluxSwitchMap.SwitchMapInner<R>
pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>, FluxSwitchMap.SwitchMapInner<R>>
pack-priv final Function<? super T, ? extends Publisher<? extends R>>
pack-priv volatile int
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>>
pack-priv final int
pack-priv final Queue<Object>
pack-priv final BiPredicate<Object, Object>
pack-priv volatile long
pack-priv static final AtomicLongFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>>
pack-priv Subscription
s

pack-priv volatile int
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>>

Constructor Summary

AccessConstructor and Description
pack-priv
SwitchMapMain(CoreSubscriber<? super R> actual, Function<? super T, ? extends Publisher<? extends R>> mapper, Queue<Object> queue, int prefetch)

Method Summary

Modifier and TypeMethod and Description
public final CoreSubscriber<? super R>
public void
cancel()

Implements org.reactivestreams.Subscription.cancel.

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

pack-priv void
pack-priv void
pack-priv void
pack-priv void
pack-priv void
public Stream<? extends Scannable>
inners()

Overrides default reactor.core.Scannable.inners.

Return a Stream of referenced inners (flatmap, multicast etc)
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 reactor.core.CoreSubscriber.onSubscribe.

Implementors should initialize any state used by onNext(Object) before calling Subscription#request(long).
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 Object
scanUnsafe(Scannable.Attr<T>
a Attr to resolve for the component.
key
)

Overrides default reactor.core.publisher.InnerProducer.scanUnsafe.

Implements reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place.
Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

activeback to summary
pack-priv volatile int active
ACTIVEback to summary
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>> ACTIVE
Annotations
@SuppressWarnings:rawtypes
actualback to summary
pack-priv final CoreSubscriber<? super R> actual
cancelledback to summary
pack-priv volatile boolean cancelled
doneback to summary
pack-priv volatile boolean done
errorback to summary
pack-priv volatile Throwable error
ERRORback to summary
pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>, Throwable> ERROR
Annotations
@SuppressWarnings:rawtypes
indexback to summary
pack-priv volatile long index
INDEXback to summary
pack-priv static final AtomicLongFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>> INDEX
Annotations
@SuppressWarnings:rawtypes
innerback to summary
pack-priv volatile FluxSwitchMap.SwitchMapInner<R> inner
INNERback to summary
pack-priv static final AtomicReferenceFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>, FluxSwitchMap.SwitchMapInner<R>> INNER
Annotations
@SuppressWarnings:rawtypes
mapperback to summary
pack-priv final Function<? super T, ? extends Publisher<? extends R>> mapper
onceback to summary
pack-priv volatile int once
ONCEback to summary
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>> ONCE
Annotations
@SuppressWarnings:rawtypes
prefetchback to summary
pack-priv final int prefetch
queueback to summary
pack-priv final Queue<Object> queue
queueBiAtomicback to summary
pack-priv final BiPredicate<Object, Object> queueBiAtomic
requestedback to summary
pack-priv volatile long requested
REQUESTEDback to summary
pack-priv static final AtomicLongFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>> REQUESTED
Annotations
@SuppressWarnings:rawtypes
sback to summary
pack-priv Subscription s
wipback to summary
pack-priv volatile int wip
WIPback to summary
pack-priv static final AtomicIntegerFieldUpdater<FluxSwitchMap.SwitchMapMain<T, R>> WIP
Annotations
@SuppressWarnings:rawtypes

Constructor Detail

SwitchMapMainback to summary
pack-priv SwitchMapMain(CoreSubscriber<? super R> actual, Function<? super T, ? extends Publisher<? extends R>> mapper, Queue<Object> queue, int prefetch)
Annotations
@SuppressWarnings:unchecked

Method Detail

actualback to summary
public final CoreSubscriber<? super R> actual()

Implements reactor.core.publisher.InnerProducer.actual.

Annotations
@Override
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
cancelAndCleanupback to summary
pack-priv void cancelAndCleanup(Queue<?> q)
cancelInnerback to summary
pack-priv void cancelInner()
checkTerminatedback to summary
pack-priv boolean checkTerminated(boolean d, boolean empty, Subscriber<?> a, Queue<?> q)
deactivateback to summary
pack-priv void deactivate()
drainback to summary
pack-priv void drain()
innerCompleteback to summary
pack-priv void innerComplete(FluxSwitchMap.SwitchMapInner<R> inner)
innerErrorback to summary
pack-priv void innerError(FluxSwitchMap.SwitchMapInner<R> inner, Throwable e)
innerNextback to summary
pack-priv void innerNext(FluxSwitchMap.SwitchMapInner<R> inner, R value)
innersback to summary
public Stream<? extends Scannable> inners()

Overrides default reactor.core.Scannable.inners.

Doc from reactor.core.Scannable.inners.

Return a Stream of referenced inners (flatmap, multicast etc)

Returns:Stream<? extends Scannable>

a Stream of referenced inners (flatmap, multicast etc)

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 reactor.core.CoreSubscriber.onSubscribe.

Doc from reactor.core.CoreSubscriber.onSubscribe.

Implementors should initialize any state used by onNext(Object) before calling Subscription#request(long). Should further onNext related state modification occur, thread-safety will be required.

Note that an invalid request <= 0 will not produce an onError and will simply be ignored or reported through a debug-enabled reactor.util.Logger. 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
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
scanUnsafeback to summary
public Object scanUnsafe(Scannable.Attr<T> key)

Overrides default reactor.core.publisher.InnerProducer.scanUnsafe.

Implements reactor.core.Scannable.scanUnsafe.

Doc from reactor.core.Scannable.scanUnsafe.

This method is used internally by components to define their key-value mappings in a single place. Although it is ignoring the generic type of the Attr key, implementors should take care to return values of the correct type, and return null if no specific value is available.

For public consumption of attributes, prefer using scan(Attr), which will return a typed value and fall back to the key's default if the component didn't define any mapping.

Parameters
key:Scannable.Attr<T>

a Attr to resolve for the component.

Returns:Object

the value associated to the key for that specific component, or null if none.

Annotations
@Override
@Nullable