Package 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 Detail

      • setErrorParameter

        int setErrorParameter​(BeforeEnterEvent event,
                      ErrorParameter<T> parameter)
        Callback executed before rendering the exception view.

        Note! returned int should be a valid HttpStatusCode code

        Parameters:
        event - the before navigation event for this request
        parameter - error parameter containing custom exception and caught exception
        Returns:
        a valid HttpStatusCode code