com.vaadin.flow.router

Interface BeforeLeaveListener

All Superinterfaces:

BeforeLeaveHandler, Serializable

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 BeforeLeaveListener
extends BeforeLeaveHandler

A listener that may be added to the UI using UI.addBeforeLeaveListener(BeforeLeaveListener).

All listeners added this way will be informed when old components are detached from the UI.

During this phase there is the possibility to reroute to another navigation target or to postpone the navigation (to for instance get user input). All BeforeLeaveListeners will be executed before the BeforeLeaveObservers. To control the order of execution of BeforeLeaveListeners, see ListenerPriority

Method Summary

Methods inherited from interface com.vaadin.flow.router.internal.BeforeLeaveHandler

beforeLeave