Class ErrorStateRenderer

Constructor Detail

• ErrorStateRenderer

  public ErrorStateRenderer(NavigationState navigationState)

  Constructs a new state renderer for the given navigation state.

  Parameters:

  navigationState - the navigation state handled by this instance

Method Detail

• handle

  public int handle(NavigationEvent event)

  Description copied from interface: NavigationHandler

  Handles the navigation event.

  Specified by:

  handle in interface NavigationHandler

  Overrides:

  handle in class AbstractNavigationStateRenderer

  Parameters:

  event - the navigation event to handle

  Returns:

  the HTTP status code to return to the client if handling an initial rendering request

• notifyNavigationTarget

  protected void notifyNavigationTarget(Component componentInstance,
                                        NavigationEvent navigationEvent,
                                        BeforeEnterEvent beforeEnterEvent,
                                        LocationChangeEvent locationChangeEvent)

  Description copied from class: AbstractNavigationStateRenderer

  Notify the navigation target about the status of the navigation.

  Specified by:

  notifyNavigationTarget in class AbstractNavigationStateRenderer

  Parameters:

  componentInstance - the navigation target instance

  navigationEvent - the low level navigation event that is being processed

  beforeEnterEvent - the before enter event that will be fired unless navigation is rerouted

  locationChangeEvent - the location change event that will be fired unless navigation is rerouted

• getRouterLayoutTypes

  public List<Class<? extends RouterLayout>> getRouterLayoutTypes(Class<? extends Component> targetType,
                                                                  Router router)

  Gets the router layout types to show for the given route target type, starting from the parent layout immediately wrapping the route target type.

  Specified by:

  getRouterLayoutTypes in class AbstractNavigationStateRenderer

  Parameters:

  targetType - component type to show

  router - used router instance

  Returns:

  a list of parent RouterLayout types, not null

• eventActionsSupported

  protected boolean eventActionsSupported()

  Description copied from class: AbstractNavigationStateRenderer

  Checks whether this renderer should reroute or postpone navigation based on results from event listeners. Furthermore, the before leave event is not fired at all if event actions are not supported.

  Specified by:

  eventActionsSupported in class AbstractNavigationStateRenderer

  Returns:

  true to support event actions; false otherwise.