Class MaybeCount<T>
- Type Parameters:
T
- the source value type
- All Implemented Interfaces:
SingleSource<Long>
,HasUpstreamMaybeSource<T>
Signals 1L if the source signalled an item or 0L if the source is empty.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescription(package private) static final class
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionsource()
Returns the upstream source of this Maybe.protected void
subscribeActual
(SingleObserver<? super Long> observer) Implement this method in subclasses to handle the incomingSingleObserver
s.Methods inherited from class io.reactivex.rxjava3.core.Single
amb, ambArray, ambWith, blockingGet, blockingSubscribe, blockingSubscribe, blockingSubscribe, blockingSubscribe, cache, cast, compose, concat, concat, concat, concat, concat, concat, concat, concatArray, concatArrayDelayError, concatArrayEager, concatArrayEagerDelayError, concatDelayError, concatDelayError, concatDelayError, concatEager, concatEager, concatEager, concatEager, concatEagerDelayError, concatEagerDelayError, concatEagerDelayError, concatEagerDelayError, concatMap, concatMapCompletable, concatMapMaybe, concatWith, contains, contains, create, defer, delay, delay, delay, delay, delaySubscription, delaySubscription, delaySubscription, delaySubscription, delaySubscription, delaySubscription, dematerialize, doAfterSuccess, doAfterTerminate, doFinally, doOnDispose, doOnError, doOnEvent, doOnLifecycle, doOnSubscribe, doOnSuccess, doOnTerminate, error, error, filter, flatMap, flatMap, flatMap, flatMapCompletable, flatMapMaybe, flatMapObservable, flatMapPublisher, flattenAsFlowable, flattenAsObservable, flattenStreamAsFlowable, flattenStreamAsObservable, fromCallable, fromCompletionStage, fromFuture, fromFuture, fromMaybe, fromMaybe, fromObservable, fromPublisher, fromSupplier, hide, ignoreElement, just, lift, map, mapOptional, materialize, merge, merge, merge, merge, merge, merge, mergeArray, mergeArrayDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeDelayError, mergeWith, never, observeOn, ofType, onErrorComplete, onErrorComplete, onErrorResumeNext, onErrorResumeWith, onErrorReturn, onErrorReturnItem, onTerminateDetach, repeat, repeat, repeatUntil, repeatWhen, retry, retry, retry, retry, retry, retryUntil, retryWhen, safeSubscribe, sequenceEqual, startWith, startWith, startWith, startWith, startWith, subscribe, subscribe, subscribe, subscribe, subscribe, subscribe, subscribeOn, subscribeWith, switchOnNext, switchOnNextDelayError, takeUntil, takeUntil, takeUntil, test, test, timeInterval, timeInterval, timeInterval, timeInterval, timeout, timeout, timeout, timeout, timer, timer, timestamp, timestamp, timestamp, timestamp, to, toCompletionStage, toFlowable, toFuture, toMaybe, toObservable, unsafeCreate, unsubscribeOn, using, using, wrap, zip, zip, zip, zip, zip, zip, zip, zip, zip, zipArray, zipWith
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Field Details
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source
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Constructor Details
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MaybeCount
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Method Details
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source
Description copied from interface:HasUpstreamMaybeSource
Returns the upstream source of this Maybe.Allows discovering the chain of observables.
- Specified by:
source
in interfaceHasUpstreamMaybeSource<T>
- Returns:
- the source MaybeSource
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subscribeActual
Description copied from class:Single
Implement this method in subclasses to handle the incomingSingleObserver
s.There is no need to call any of the plugin hooks on the current
Single
instance or theSingleObserver
; all hooks and basic safeguards have been applied bySingle.subscribe(SingleObserver)
before this method gets called.- Specified by:
subscribeActual
in classSingle<Long>
- Parameters:
observer
- theSingleObserver
to handle, notnull
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