com.google.common.util.concurrent

Interface AsyncCallable<V>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@Beta
 @FunctionalInterface
 @GwtCompatible
public interface AsyncCallable<V>

Computes a value, possibly asynchronously. For an example usage and more information, see Futures.FutureCombiner.callAsync(AsyncCallable, java.util.concurrent.Executor).

Much like Callable, but returning a ListenableFuture result.

Since:

20.0

Method Summary

Modifier and Type	Method and Description
ListenableFuture<V>	call() Computes a result Future.

Method Detail

call

ListenableFuture<V> call()
                  throws Exception

Computes a result Future. The output Future need not be done, making AsyncCallable suitable for asynchronous derivations.

Throwing an exception from this method is equivalent to returning a failing ListenableFuture.

Throws:

Exception