com.vaadin.flow.router

Interface HasErrorParameter<T extends Exception>

Type Parameters:

T - type Exception type handled

All Superinterfaces:

Serializable

All Known Implementing Classes:

InternalServerError, RouteNotFoundError

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 HasErrorParameter<T extends Exception>
extends Serializable

Defines a view that handles the exceptions for the set Exception type T.

Since:

1.0

Author:

Vaadin Ltd

Method Summary

Modifier and Type	Method and Description
int	setErrorParameter(BeforeEnterEvent event, ErrorParameter<T> parameter) Callback executed before rendering the exception view.

Method Detail

setErrorParameter

int setErrorParameter(BeforeEnterEvent event,
                      ErrorParameter<T> parameter)

Callback executed before rendering the exception view.

Note! returned int should be a valid HttpServletResponse code

Parameters:

event - the before navigation event for this request

parameter - error parameter containing custom exception and caught exception

Returns:

a valid HttpServletResponse code