Package rx.internal.operators

Class OnSubscribeFromAsync.BaseAsyncEmitter<T>

java.lang.Object
java.lang.Number
java.util.concurrent.atomic.AtomicLong
rx.internal.operators.OnSubscribeFromAsync.BaseAsyncEmitter<T>
All Implemented Interfaces:
Serializable, AsyncEmitter<T>, Observer<T>, Producer, Subscription
Direct Known Subclasses:
OnSubscribeFromAsync.BufferAsyncEmitter, OnSubscribeFromAsync.LatestAsyncEmitter, OnSubscribeFromAsync.NoneAsyncEmitter, OnSubscribeFromAsync.NoOverflowBaseAsyncEmitter
Enclosing class:
OnSubscribeFromAsync<T>
abstract static class OnSubscribeFromAsync.BaseAsyncEmitter<T> extends AtomicLong implements AsyncEmitter<T>, Producer, Subscription

  • Field Details

  • Constructor Details

    • BaseAsyncEmitter

      public BaseAsyncEmitter(Subscriber<? super T> actual)

  • Method Details

    • onCompleted

      public void onCompleted()
      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:
      onCompleted in interface Observer<T>

    • onError

      public void onError(Throwable e)
      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.onCompleted().

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

    • unsubscribe

      public final void unsubscribe()
      Description copied from interface: Subscription
      Stops the receipt of notifications on the Subscriber that was registered when this Subscription was received.

      This allows unregistering an Subscriber before it has finished receiving all events (i.e. before onCompleted is called).

      Specified by:
      unsubscribe in interface Subscription

    • onUnsubscribed

      void onUnsubscribed()

    • isUnsubscribed

      public final boolean isUnsubscribed()
      Description copied from interface: Subscription
      Indicates whether this Subscription is currently unsubscribed.
      Specified by:
      isUnsubscribed in interface Subscription
      Returns:
      true if this Subscription is currently unsubscribed, false otherwise

    • request

      public final void request(long n)
      Description copied from interface: Producer
      Request a certain maximum number of items from this Producer. This is a way of requesting backpressure. To disable backpressure, pass Long.MAX_VALUE to this method.

      Requests are additive but if a sequence of requests totals more than Long.MAX_VALUE then Long.MAX_VALUE requests will be actioned and the extras may be ignored. Arriving at Long.MAX_VALUE by addition of requests cannot be assumed to disable backpressure. For example, the code below may result in Long.MAX_VALUE requests being actioned only. 

       request(100);
 request(Long.MAX_VALUE-1);
      Specified by:
      request in interface Producer
      Parameters:
      n - the maximum number of items you want this Producer to produce, or Long.MAX_VALUE if you want the Producer to produce items at its own pace

    • onRequested

      void onRequested()

    • setSubscription

      public final void setSubscription(Subscription s)
      Description copied from interface: AsyncEmitter
      Sets a Subscription on this emitter; any previous Subscription or Cancellation will be unsubscribed/cancelled.
      Specified by:
      setSubscription in interface AsyncEmitter<T>
      Parameters:
      s - the subscription, null is allowed

    • setCancellation

      public final void setCancellation(AsyncEmitter.Cancellable c)
      Description copied from interface: AsyncEmitter
      Sets a Cancellable on this emitter; any previous Subscription or Cancellation will be unsubscribed/cancelled.
      Specified by:
      setCancellation in interface AsyncEmitter<T>
      Parameters:
      c - the cancellable resource, null is allowed

    • requested

      public final long requested()
      Description copied from interface: AsyncEmitter
      The current outstanding request amount.

      This method it threadsafe.

      Specified by:
      requested in interface AsyncEmitter<T>
      Returns:
      the current outstanding request amount