Interface AsyncFunction<I,O>

@GwtCompatible public interface AsyncFunction<I,O>
Transforms a value, possibly asynchronously. For an example usage and more information, see Futures.transformAsync(ListenableFuture, AsyncFunction).
Since:
11.0

  • Method Summary

    Modifier and Type
    Method
    Description
    ListenableFuture<O>
    apply(I input)
    Returns an output Future to use in place of the given input.

  • Method Details

    • apply

      ListenableFuture<O> apply(@Nullable I input) throws Exception
      Returns an output 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.

      Throws:
      Exception