Package io.reactivex.rxjava3.internal.operators.observable

Class ObservableObserveOn.ObserveOnObserver<T>

java.lang.Object
java.lang.Number
java.util.concurrent.atomic.AtomicInteger
io.reactivex.rxjava3.internal.observers.BasicIntQueueDisposable<T>
io.reactivex.rxjava3.internal.operators.observable.ObservableObserveOn.ObserveOnObserver<T>
All Implemented Interfaces:
Observer<T>, Disposable, QueueDisposable<T>, QueueFuseable<T>, SimpleQueue<T>, Serializable, Runnable
Enclosing class:
ObservableObserveOn<T>
static final class ObservableObserveOn.ObserveOnObserver<T> extends BasicIntQueueDisposable<T> implements Observer<T>, Runnable

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:

    • downstream

      final Observer<? super T> downstream

    • worker

      final Scheduler.Worker worker

    • delayError

      final boolean delayError

    • bufferSize

      final int bufferSize

    • queue

      SimpleQueue<T> queue

    • upstream

      Disposable upstream

    • error

      Throwable error

    • done

      volatile boolean done

    • disposed

      volatile boolean disposed

    • sourceMode

      int sourceMode

    • outputFused

      boolean outputFused

  • Constructor Details

    • ObserveOnObserver

      ObserveOnObserver(Observer<? super T> actual, Scheduler.Worker worker, boolean delayError, int bufferSize)

  • Method Details

    • onSubscribe

      public void onSubscribe(Disposable d)
      Description copied from interface: Observer
      Provides the Observer with the means of cancelling (disposing) the connection (channel) with the Observable in both synchronous (from within Observer.onNext(Object)) and asynchronous manner.
      Specified by:
      onSubscribe in interface Observer<T>
      Parameters:
      d - the Disposable instance whose Disposable.dispose() can be called anytime to cancel the connection

    • onNext

      public void onNext(T t)
      Description copied from interface: Observer
      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 Observer.onComplete() or Observer.onError(java.lang.Throwable).

      Specified by:
      onNext in interface Observer<T>
      Parameters:
      t - the item emitted by the Observable

    • onError

      public void onError(Throwable t)
      Description copied from interface: Observer
      Notifies the Observer that the Observable has experienced an error condition.

      If the Observable calls this method, it will not thereafter call Observer.onNext(T) or Observer.onComplete().

      Specified by:
      onError in interface Observer<T>
      Parameters:
      t - the exception encountered by the Observable

    • onComplete

      public void onComplete()
      Description copied from interface: Observer
      Notifies the Observer that the Observable has finished sending push-based notifications.

      The Observable will not call this method if it calls Observer.onError(java.lang.Throwable).

      Specified by:
      onComplete in interface Observer<T>

    • dispose

      public void dispose()
      Description copied from interface: Disposable
      Dispose the resource, the operation should be idempotent.
      Specified by:
      dispose in interface Disposable

    • isDisposed

      public boolean isDisposed()
      Description copied from interface: Disposable
      Returns true if this resource has been disposed.
      Specified by:
      isDisposed in interface Disposable
      Returns:
      true if this resource has been disposed

    • schedule

      void schedule()

    • drainNormal

      void drainNormal()

    • drainFused

      void drainFused()

    • run

      public void run()
      Specified by:
      run in interface Runnable

    • checkTerminated

      boolean checkTerminated(boolean d, boolean empty, Observer<? super T> a)

    • requestFusion

      public int requestFusion(int mode)
      Description copied from interface: QueueFuseable
      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.

      Specified by:
      requestFusion in interface QueueFuseable<T>
      Parameters:
      mode - the requested fusion mode, allowed values are QueueFuseable.SYNC, QueueFuseable.ASYNC, QueueFuseable.ANY combined with QueueFuseable.BOUNDARY (e.g., requestFusion(SYNC | BOUNDARY)).
      Returns:
      the established fusion mode: QueueFuseable.NONE, QueueFuseable.SYNC, QueueFuseable.ASYNC.

    • poll

      @Nullable public T poll() throws 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:
      Throwable - if some pre-processing of the dequeued item (usually through fused functions) throws.

    • 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