FailureCallback (Spring Framework 5.2.12.RELEASE API)

All Known Subinterfaces:
ListenableFutureCallback<T>
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface FailureCallback
```
Failure callback for a ListenableFuture.
Since:
4.1
Author:
Sebastien Deleuze

- Method Summary
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  void onFailure(Throwable ex)
  Called when the ListenableFuture completes with failure.

- Method Detail
  - onFailure
```
void onFailure(Throwable ex)
```
    Called when the ListenableFuture completes with failure.
    Note that Exceptions raised by this method are ignored.
    Parameters:
    ex - the failure