2.x: terminating repeatWhen #4818
Description
In 2.X repeatWhen can't seem to be terminated (onError) by throwing an exception from the observable:
private int count = 0;
private Observable<Integer> getTestObservable() {
return Observable.fromCallable(new Callable<Integer>() {
@Override
public Integer call() throws Exception {
count++;
if (count == 5) {
throw new Exception("Some exception");
}
return count;
}
});
}
@Test
public void testRepeatWhen() {
getTestObservable()
.repeatWhen(new Function<Observable<Object>, ObservableSource<?>>() {
@Override
public ObservableSource<?> apply(Observable<Object> objectObservable) throws Exception {
return objectObservable.delay(1, TimeUnit.SECONDS);
}
})
.subscribe(new Observer<Integer>() {
@Override
public void onSubscribe(Disposable d) {
System.out.println("onSubscribe");
}
@Override
public void onNext(Integer value) {
System.out.println("onNext: " + value);
}
@Override
public void onError(Throwable e) {
System.out.println("onError");
}
@Override
public void onComplete() {
System.out.println("onComplete");
}
});
}
Output:
onSubscribe
onNext: 1
onNext: 2
onNext: 3
onNext: 4
onNext: 6
onNext: 7
...
When the exception is thrown, neither onNext nor onError is called on the subscription, then repeatWhen continues.
This behavior is different to the equivalence in 1.x.
How can repeatWhen be terminated in 2.x?
Thanks.