Class DisposableCompletableObserver

java.lang.Object
io.reactivex.rxjava4.observers.DisposableCompletableObserver
All Implemented Interfaces:
CompletableObserver, Disposable
public abstract class DisposableCompletableObserver extends Object implements CompletableObserver, Disposable
An abstract CompletableObserver that allows asynchronous cancellation by implementing Disposable.

All pre-implemented final methods are thread-safe.

Like all other consumers, DisposableCompletableObserver can be subscribed only once. Any subsequent attempt to subscribe it to a new source will yield an IllegalStateException with message "It is not allowed to subscribe with a(n) <class name> multiple times.".

Implementation of onStart(), CompletableObserver.onError(Throwable) and CompletableObserver.onComplete() are not allowed to throw any unchecked exceptions.

Example

Disposable d =
    Completable.complete().delay(1, TimeUnit.SECONDS)
    .subscribeWith(new DisposableMaybeObserver<Integer>() {
        @Override public void onStart() {
            System.out.println("Start!");
        }
        @Override public void onError(Throwable t) {
            t.printStackTrace();
        }
        @Override public void onComplete() {
            System.out.println("Done!");
        }
    });
// ...
d.dispose();

  • Constructor Details

    • DisposableCompletableObserver

      public DisposableCompletableObserver()

  • Method Details

    • onSubscribe

      public final void onSubscribe(@NonNull @NonNull Disposable d)
      Description copied from interface: CompletableObserver
      Called once by the Completable to set a Disposable on this instance which then can be used to cancel the subscription at any time.
      Specified by:
      onSubscribe in interface CompletableObserver
      Parameters:
      d - the Disposable instance to call dispose on for cancellation, not null

    • onStart

      protected void onStart()
      Called once the single upstream Disposable is set via onSubscribe(Disposable).

    • isDisposed

      public final 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

    • dispose

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