Class ObservableFromCallable<T>

  • Type Parameters:
    T - the value type
    All Implemented Interfaces:
    ObservableSource<T>, Supplier<T>

    public final class ObservableFromCallable<T>
    extends Observable<T>
    implements Supplier<T>
    Calls a Callable and emits its resulting single value or signals its exception.
    • Field Detail

      • callable

        final java.util.concurrent.Callable<? extends T> callable
    • Constructor Detail

      • ObservableFromCallable

        public ObservableFromCallable​(java.util.concurrent.Callable<? extends T> callable)
    • Method Detail

      • subscribeActual

        public void subscribeActual​(Observer<? super T> observer)
        Description copied from class: Observable
        Operator implementations (both source and intermediate) should implement this method that performs the necessary business logic and handles the incoming Observers.

        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.

        Specified by:
        subscribeActual in class Observable<T>
        Parameters:
        observer - the incoming Observer, never null
      • get

        public T get()
              throws java.lang.Throwable
        Description copied from interface: Supplier
        Produces a value or throws an exception.
        Specified by:
        get in interface Supplier<T>
        Returns:
        the value produced
        Throws:
        java.lang.Throwable - if the implementation wishes to throw any type of exception