Class FutureSubscriber<T>

java.lang.Object
java.util.concurrent.CountDownLatch
io.reactivex.rxjava3.internal.subscribers.FutureSubscriber<T>
Type Parameters:
T - the value type
All Implemented Interfaces:
FlowableSubscriber<T>, Future<T>, org.reactivestreams.Subscriber<T>, org.reactivestreams.Subscription

public final class FutureSubscriber<T> extends CountDownLatch implements FlowableSubscriber<T>, Future<T>, org.reactivestreams.Subscription
A Subscriber + Future that expects exactly one upstream value and provides it via the (blocking) Future API.
  • Field Details

  • Constructor Details

    • FutureSubscriber

      public FutureSubscriber()
  • Method Details

    • cancel

      public boolean cancel(boolean mayInterruptIfRunning)
      Specified by:
      cancel in interface Future<T>
    • isCancelled

      public boolean isCancelled()
      Specified by:
      isCancelled in interface Future<T>
    • isDone

      public boolean isDone()
      Specified by:
      isDone in interface Future<T>
    • get

      Specified by:
      get in interface Future<T>
      Throws:
      InterruptedException
      ExecutionException
    • get

      Specified by:
      get in interface Future<T>
      Throws:
      InterruptedException
      ExecutionException
      TimeoutException
    • 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(Throwable t)
      Specified by:
      onError in interface org.reactivestreams.Subscriber<T>
    • onComplete

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

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

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