ratpack.promise

Interface SuccessOrErrorPromise<T>

Type Parameters:

T - The type of result object that the operation produces

All Superinterfaces:

SuccessPromise<T>

public interface SuccessOrErrorPromise<T>
extends SuccessPromise<T>

A promise of an outcome that may be a successful result or an error exception.

Method Summary

Methods

Modifier and Type	Method and Description
SuccessPromise<T>	onError(Action<? super Throwable> errorHandler) Specifies the action to take if the an error occurs trying to produce the promised value.

Methods inherited from interface ratpack.promise.SuccessPromise

then

Method Detail

onError

SuccessPromise<T> onError(Action<? super Throwable> errorHandler)

Specifies the action to take if the an error occurs trying to produce the promised value.

Parameters:

errorHandler - the action to take if an error occurs

Returns:

A promise for the successful result