T- The value type of the resolved Promise passed as input to this callback.
R- The value type of the returned Promise from this callback.
@ConsumerType @FunctionalInterface public interface Success<T,R>
A Success callback is registered with a
Promise using the
Promise.then(Success) method and is called if the Promise is resolved
This is a functional interface and can be used as the assignment target for a lambda expression or method reference.
|Modifier and Type||Method and Description|
Success callback for a Promise.
Promise<R> call(Promise<T> resolved) throws java.lang.Exception
This method is called if the Promise with which it is registered resolves successfully.
In the remainder of this description we will refer to the Promise
returned by this method as the returned Promise and the Promise returned
Promise.then(Success) when this Success callback was
registered as the chained Promise.
If the returned Promise is
null then the chained Promise must
resolve immediately with a successful value of
null. If the
returned Promise is not
null then the chained Promise must be
resolved when the returned Promise is resolved.
resolved- The successfully resolved
nullif the chained Promise is to be resolved immediately with the value
java.lang.Exception- The chained Promise must be failed with the thrown exception.
Copyright © OSGi Alliance (2000, 2018). All Rights Reserved. Licensed under the OSGi Specification License, Version 2.0