Interface AsyncFunction<I,O>
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public interface AsyncFunction<I,O>Transforms a value, possibly asynchronously. For an example usage and more information, seeFutures.transform(ListenableFuture, AsyncFunction).- Since:
- 11.0
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description ListenableFuture<O>apply(I input)Returns an outputFutureto use in place of the giveninput.
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Method Detail
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apply
ListenableFuture<O> apply(I input) throws java.lang.Exception
Returns an outputFutureto use in place of the giveninput. The outputFutureneed not be done, makingAsyncFunctionsuitable for asynchronous derivations.Throwing an exception from this method is equivalent to returning a failing
Future.- Throws:
java.lang.Exception
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