com.vaadin.flow.router.internal.

java.lang.Object
- com.vaadin.flow.router.internal.AbstractNavigationStateRenderer
- - com.vaadin.flow.router.internal.ErrorStateRenderer

All Implemented Interfaces:

NavigationHandler, Serializable
```
public class ErrorStateRenderer
extends AbstractNavigationStateRenderer
```
Handles error navigation rendering in the target UI.
For internal use only. May be renamed or removed in a future release.

Since:

1.0

See Also:

HasErrorParameter, Serialized Form

Constructor Summary

Constructors
Constructor Description

ErrorStateRenderer(NavigationState navigationState)
Constructs a new state renderer for the given navigation state.

Method Summary

All Methods
Modifier and Type	Method	Description
`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.
`int`	`handle(NavigationEvent event)`	Handles the navigation event.
`protected void`	`notifyNavigationTarget(Component componentInstance, NavigationEvent navigationEvent, BeforeEnterEvent beforeEnterEvent, LocationChangeEvent locationChangeEvent)`	Notify the navigation target about the status of the navigation.

Methods inherited from class com.vaadin.flow.router.internal.AbstractNavigationStateRenderer
getNavigationState, handleTriggeredBeforeEvent, pushHistoryState, shouldPushHistoryState

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 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

com.vaadin.flow.router.internal.

Class ErrorStateRenderer

Constructor Summary

Method Summary

Methods inherited from class com.vaadin.flow.router.internal.AbstractNavigationStateRenderer

Methods inherited from class java.lang.Object

Constructor Detail

ErrorStateRenderer

Method Detail

handle

notifyNavigationTarget

getRouterLayoutTypes