T - the received value typepublic abstract class DisposableSingleObserver<T> extends Object implements SingleObserver<T>, Disposable
SingleObserver that allows asynchronous cancellation by implementing Disposable.
All pre-implemented final methods are thread-safe.
Like all other consumers, DisposableSingleObserver 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(), SingleObserver.onSuccess(Object) and SingleObserver.onError(Throwable)
are not allowed to throw any unchecked exceptions.
Example
Disposable d =
Single.just(1).delay(1, TimeUnit.SECONDS)
.subscribeWith(new DisposableSingleObserver<Integer>() {
@Override public void onStart() {
System.out.println("Start!");
}
@Override public void onSuccess(Integer t) {
System.out.println(t);
}
@Override public void onError(Throwable t) {
t.printStackTrace();
}
});
// ...
d.dispose();
| Constructor and Description |
|---|
DisposableSingleObserver () |
| Modifier and Type | Method and Description |
|---|---|
void |
dispose ()
Dispose the resource, the operation should be idempotent.
|
boolean |
isDisposed ()
Returns true if this resource has been disposed.
|
protected void |
onStart ()
Called once the single upstream
Disposable is set via onSubscribe(Disposable). |
void |
onSubscribe (@NonNull Disposable d)
Provides the
SingleObserver with the means of cancelling (disposing) the
connection (channel) with the Single in both
synchronous (from within onSubscribe(Disposable) itself) and asynchronous manner. |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait onError, onSuccess disposed, empty, fromAction, fromAutoCloseable, fromFuture, fromFuture, fromRunnable, fromSubscription, toAutoCloseable public DisposableSingleObserver()
public final void onSubscribe(@NonNull @NonNull Disposable d)
SingleObserver SingleObserver with the means of cancelling (disposing) the
connection (channel) with the Single in both
synchronous (from within onSubscribe(Disposable) itself) and asynchronous manner.onSubscribe in interface SingleObserver<T>d - the Disposable instance whose Disposable.dispose() can
be called anytime to cancel the connectionprotected void onStart()
Disposable is set via onSubscribe(Disposable).public final boolean isDisposed()
Disposable isDisposed in interface Disposable public final void dispose()
Disposable dispose in interface Disposable