@GwtCompatible public interface AsyncFunction<I,O>
Futures.transformAsync(ListenableFuture, AsyncFunction).| Modifier and Type | Method and Description |
|---|---|
ListenableFuture<O> |
apply(I input)
Returns an output
Future to use in place of the given input. |
ListenableFuture<O> apply(@Nullable I input) throws Exception
Future to use in place of the given input. The output Future need not be done, making AsyncFunction suitable for
asynchronous derivations.
Throwing an exception from this method is equivalent to returning a failing Future.
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