Package io.reactivex.rxjava3.internal.operators.flowable

Class FlowableFlattenIterable.FlattenIterableSubscriber<T,​R>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) boolean cancelled  
      (package private) int consumed  
      (package private) java.util.Iterator<? extends R> current  
      (package private) boolean done  
      (package private) org.reactivestreams.Subscriber<? super R> downstream  
      (package private) java.util.concurrent.atomic.AtomicReference<java.lang.Throwable> error  
      (package private) int fusionMode  
      (package private) int limit  
      (package private) Function<? super T,​? extends java.lang.Iterable<? extends R>> mapper  
      (package private) int prefetch  
      (package private) SimpleQueue<T> queue  
      (package private) java.util.concurrent.atomic.AtomicLong requested  
      private static long serialVersionUID  
      (package private) org.reactivestreams.Subscription upstream  

    • Constructor Summary

      Constructors 
      Constructor Description
      FlattenIterableSubscriber​(org.reactivestreams.Subscriber<? super R> actual, Function<? super T,​? extends java.lang.Iterable<? extends R>> mapper, int prefetch)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void cancel()  
      (package private) boolean checkTerminated​(boolean d, boolean empty, org.reactivestreams.Subscriber<?> a, SimpleQueue<?> q)  
      void clear()
      Removes all enqueued items from this queue.
      (package private) void consumedOne​(boolean enabled)  
      (package private) void drain()  
      boolean isEmpty()
      Returns true if the queue is empty.
      void onComplete()  
      void onError​(java.lang.Throwable t)  
      void onNext​(T t)  
      void onSubscribe​(org.reactivestreams.Subscription s)
      Implementors of this method should make sure everything that needs to be visible in Subscriber.onNext(Object) is established before calling Subscription.request(long).
      R poll()
      Tries to dequeue a value (non-null) or returns null if the queue is empty.
      void request​(long n)  
      int requestFusion​(int requestedMode)
      Request a fusion mode from the upstream.

      • Methods inherited from class java.util.concurrent.atomic.AtomicInteger

        accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

      • Methods inherited from class java.lang.Number

        byteValue, shortValue

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Field Detail

      • downstream

        final org.reactivestreams.Subscriber<? super R> downstream

      • mapper

        final Function<? super T,​? extends java.lang.Iterable<? extends R>> mapper

      • prefetch

        final int prefetch

      • limit

        final int limit

      • requested

        final java.util.concurrent.atomic.AtomicLong requested

      • upstream

        org.reactivestreams.Subscription upstream

      • done

        volatile boolean done

      • cancelled

        volatile boolean cancelled

      • error

        final java.util.concurrent.atomic.AtomicReference<java.lang.Throwable> error

      • current

        java.util.Iterator<? extends R> current

      • consumed

        int consumed

      • fusionMode

        int fusionMode

    • Constructor Detail

      • FlattenIterableSubscriber

        FlattenIterableSubscriber​(org.reactivestreams.Subscriber<? super R> actual,
                          Function<? super T,​? extends java.lang.Iterable<? extends R>> mapper,
                          int prefetch)

    • Method Detail

      • onSubscribe

        public void onSubscribe​(org.reactivestreams.Subscription s)
        Description copied from interface: FlowableSubscriber
        Implementors of this method should make sure everything that needs to be visible in Subscriber.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.
        Specified by:
        onSubscribe in interface FlowableSubscriber<T>
        Specified by:
        onSubscribe in interface org.reactivestreams.Subscriber<T>

      • onNext

        public void onNext​(T t)
        Specified by:
        onNext in interface org.reactivestreams.Subscriber<T>

      • onError

        public void onError​(java.lang.Throwable t)
        Specified by:
        onError in interface org.reactivestreams.Subscriber<T>

      • onComplete

        public void onComplete()
        Specified by:
        onComplete in interface org.reactivestreams.Subscriber<T>

      • request

        public void request​(long n)
        Specified by:
        request in interface org.reactivestreams.Subscription

      • cancel

        public void cancel()
        Specified by:
        cancel in interface org.reactivestreams.Subscription

      • drain

        void drain()

      • consumedOne

        void consumedOne​(boolean enabled)

      • checkTerminated

        boolean checkTerminated​(boolean d,
                        boolean empty,
                        org.reactivestreams.Subscriber<?> a,
                        SimpleQueue<?> q)

      • clear

        public void clear()
        Description copied from interface: SimpleQueue
        Removes all enqueued items from this queue.
        Specified by:
        clear in interface SimpleQueue<T>

      • isEmpty

        public boolean isEmpty()
        Description copied from interface: SimpleQueue
        Returns true if the queue is empty.

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

        Specified by:
        isEmpty in interface SimpleQueue<T>
        Returns:
        true if the queue is empty

      • poll

        @Nullable
public R poll()
       throws java.lang.Throwable
        Description copied from interface: SimpleQueue
        Tries to dequeue a value (non-null) or returns null if the queue is empty.

        If the producer uses SimpleQueue.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.

        Specified by:
        poll in interface SimpleQueue<T>
        Returns:
        the item or null to indicate an empty queue
        Throws:
        java.lang.Throwable - if some pre-processing of the dequeued item (usually through fused functions) throws.