Module page.codeberg.friedolyn.Friedolyn

Package page.codeberg.friedolyn.util

Interface Task.FailureListener<ResultType>

Type Parameters:

ResultType - The class of the result that the action executed produces.

All Known Implementing Classes:

Task.TaskListener

Enclosing class:

Task<ResultType>

public static interface Task.FailureListener<ResultType>

A subscriber exclusively interested in the failure and the result of the action, but in no other information.

See Also:

• Task.TaskListener.from(FailureListener)

Method Summary

Modifier and Type	Method	Description
void	onFailed(@NonNull Optional<ResultType> result)	Called when the action has finished with errors or other unexpected behavior.

Method Details

onFailed

void onFailed(@NonNull
 @NonNull Optional<ResultType> result)

Called when the action has finished with errors or other unexpected behavior.

Parameters:

result - The end product generated by the action, if any. Its presence does NOT indicate success.

API Note:

The result is an Optional because it is essentially a return value rather than an actual parameter in the traditional sense. This means that it's okay to use Optional here despite the fact that it was designed for API return values.