T
- the source element typepublic final class ObservableCache<T> extends Observable<U> implements Observer<T>
Modifier and Type | Field and Description |
---|---|
protected ObservableSource<T> |
source
The source consumable Observable.
|
Constructor and Description |
---|
ObservableCache(Observable<T> source,
int capacityHint)
Constructs an empty, non-connected cache.
|
Modifier and Type | Method and Description |
---|---|
void |
onComplete()
Notifies the Observer that the
Observable has finished sending push-based notifications. |
void |
onError(Throwable t)
Notifies the Observer that the
Observable has experienced an error condition. |
void |
onNext(T t)
Provides the Observer with a new item to observe.
|
void |
onSubscribe(Disposable d)
Provides the Observer with the means of cancelling (disposing) the
connection (channel) with the Observable in both
synchronous (from within
Observer.onNext(Object) ) and asynchronous manner. |
ObservableSource<T> |
source()
Returns the upstream source of this Observable.
|
protected void |
subscribeActual(Observer<? super T> t)
Operator implementations (both source and intermediate) should implement this method that
performs the necessary business logic and handles the incoming
Observer s. |
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protected final ObservableSource<T> source
public ObservableCache(Observable<T> source, int capacityHint)
source
- the source to subscribe to for the first incoming observercapacityHint
- the number of items expected (reduce allocation frequency)protected void subscribeActual(Observer<? super T> t)
Observable
Observer
s.
There is no need to call any of the plugin hooks on the current Observable
instance or
the Observer
; all hooks and basic safeguards have been
applied by Observable.subscribe(Observer)
before this method gets called.
subscribeActual
in class Observable<T>
t
- the incoming Observer, never nullpublic void onSubscribe(Disposable d)
Observer
Observer.onNext(Object)
) and asynchronous manner.onSubscribe
in interface Observer<T>
d
- the Disposable instance whose Disposable.dispose()
can
be called anytime to cancel the connectionpublic void onNext(T t)
Observer
The Observable
may call this method 0 or more times.
The Observable
will not call this method again after it calls either Observer.onComplete()
or
Observer.onError(java.lang.Throwable)
.
public void onError(Throwable t)
Observer
Observable
has experienced an error condition.
If the Observable
calls this method, it will not thereafter call Observer.onNext(T)
or
Observer.onComplete()
.
public void onComplete()
Observer
Observable
has finished sending push-based notifications.
The Observable
will not call this method if it calls Observer.onError(java.lang.Throwable)
.
onComplete
in interface Observer<T>
public final ObservableSource<T> source()
HasUpstreamObservableSource
Allows discovering the chain of observables.
source
in interface HasUpstreamObservableSource<T>
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