Package com.vaadin.flow.router

Interface BeforeEnterListener

  • All Superinterfaces:
    BeforeEnterHandler, Serializable
    All Known Implementing Classes:
    ViewAccessChecker
    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 BeforeEnterListener
extends BeforeEnterHandler
    A listener that may be added to the UI using UI.addBeforeEnterListener(BeforeEnterListener).

    All listeners added this way will be informed when a new set of components are going to be attached to the UI.

    During this phase there is the possibility to reroute to another navigation target. All BeforeEnterListeners will be executed before the BeforeEnterObservers. To control the order of execution of BeforeEnterListeners, see ListenerPriority

    Since:
    1.0