com.vaadin.flow.router.

java.lang.Object
- java.util.EventObject
- - com.vaadin.flow.router.BeforeEvent
  - - com.vaadin.flow.router.BeforeEnterEvent

All Implemented Interfaces:

Serializable
```
public class BeforeEnterEvent
extends BeforeEvent
```
Event created before navigation happens.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Field Summary
- Fields inherited from class java.util.EventObject
  source

Constructor Summary

Constructors
Constructor and Description
`BeforeEnterEvent(NavigationEvent event, Class<?> navigationTarget)` Deprecated. Use `BeforeEnterEvent(NavigationEvent, Class, List)` instead.
`BeforeEnterEvent(NavigationEvent event, Class<?> navigationTarget, List<Class<? extends RouterLayout>> layouts)` Constructs event from a NavigationEvent.
`BeforeEnterEvent(NavigationEvent event, Class<?> navigationTarget, RouteParameters parameters, List<Class<? extends RouterLayout>> layouts)` Constructs event from a NavigationEvent.
`BeforeEnterEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, RouteParameters parameters, UI ui, List<Class<? extends RouterLayout>> layouts)` Constructs a new BeforeEnterEvent.
`BeforeEnterEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, UI ui)` Deprecated. Use `BeforeEnterEvent(Router, NavigationTrigger, Location, Class, UI, List)` instead.
`BeforeEnterEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, UI ui, List<Class<? extends RouterLayout>> layouts)` Constructs a new BeforeEnterEvent.

Method Summary

All Methods
Modifier and Type Method and Description

boolean isRefreshEvent()
Check if event is for a refresh of a preserveOnRefresh view.
- Methods inherited from class com.vaadin.flow.router.BeforeEvent
  forwardTo, forwardTo, forwardTo, forwardTo, forwardTo, forwardTo, forwardTo, getErrorParameter, getForwardTarget, getForwardTargetParameters, getForwardTargetRouteParameters, getForwardTargetType, getForwardUrl, getLayouts, getLocation, getNavigationTarget, getRerouteTarget, getRerouteTargetParameters, getRerouteTargetRouteParameters, getRerouteTargetType, getRerouteUrl, getRouteParameters, getRouteTargetType, getSource, getTrigger, getUI, hasErrorParameter, hasForwardTarget, hasRerouteTarget, rerouteTo, rerouteTo, rerouteTo, rerouteTo, rerouteTo, rerouteTo, rerouteTo, rerouteToError, rerouteToError, rerouteToError
- Methods inherited from class java.util.EventObject
  toString
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BeforeEnterEvent
```
@Deprecated
public BeforeEnterEvent(NavigationEvent event,
                                    Class<?> navigationTarget)
```
Deprecated. Use BeforeEnterEvent(NavigationEvent, Class, List) instead.

Construct event from a NavigationEvent.

Parameters:

event - NavigationEvent that is on-going

navigationTarget - Navigation target

BeforeEnterEvent

public BeforeEnterEvent(NavigationEvent event,
                        Class<?> navigationTarget,
                        List<Class<? extends RouterLayout>> layouts)

Constructs event from a NavigationEvent.

Parameters:

event - NavigationEvent that is on-going, not null

navigationTarget - navigation target, not null

layouts - navigation layout chain, not null

BeforeEnterEvent

public BeforeEnterEvent(NavigationEvent event,
                        Class<?> navigationTarget,
                        RouteParameters parameters,
                        List<Class<? extends RouterLayout>> layouts)

Constructs event from a NavigationEvent.

Parameters:

event - NavigationEvent that is on-going, not null

navigationTarget - navigation target, not null

parameters - route parameters, not null

layouts - navigation layout chain, not null

BeforeEnterEvent

@Deprecated
public BeforeEnterEvent(Router router,
                                    NavigationTrigger trigger,
                                    Location location,
                                    Class<?> navigationTarget,
                                    UI ui)

Deprecated. Use BeforeEnterEvent(Router, NavigationTrigger, Location, Class, UI, List) instead.

Constructs a new BeforeNavigation Event.

Parameters:

router - the router that triggered the change, not null

trigger - the type of user action that triggered this location change, not null

location - the new location, not null

navigationTarget - navigation target class

ui - the UI related to the navigation

BeforeEnterEvent

public BeforeEnterEvent(Router router,
                        NavigationTrigger trigger,
                        Location location,
                        Class<?> navigationTarget,
                        UI ui,
                        List<Class<? extends RouterLayout>> layouts)

Constructs a new BeforeEnterEvent.

Parameters:

router - the router that triggered the change, not null

trigger - the type of user action that triggered this location change, not null

location - the new location, not null

navigationTarget - navigation target class, not null

ui - the UI related to the navigation, not null

layouts - the layout chain for the navigation target, not null

BeforeEnterEvent

public BeforeEnterEvent(Router router,
                        NavigationTrigger trigger,
                        Location location,
                        Class<?> navigationTarget,
                        RouteParameters parameters,
                        UI ui,
                        List<Class<? extends RouterLayout>> layouts)

Constructs a new BeforeEnterEvent.

Parameters:

router - the router that triggered the change, not null

trigger - the type of user action that triggered this location change, not null

location - the new location, not null

navigationTarget - navigation target class, not null

parameters - route parameters, not null

ui - the UI related to the navigation, not null

layouts - the layout chain for the navigation target, not null

Method Detail
- isRefreshEvent
```
public boolean isRefreshEvent()
```
  Check if event is for a refresh of a preserveOnRefresh view.
  
  Returns:
  
  true if refresh of a preserve on refresh view

com.vaadin.flow.router.

Class BeforeEnterEvent

Field Summary

Fields inherited from class java.util.EventObject

Constructor Summary

Method Summary

Methods inherited from class com.vaadin.flow.router.BeforeEvent

Methods inherited from class java.util.EventObject

Methods inherited from class java.lang.Object

Constructor Detail

BeforeEnterEvent

BeforeEnterEvent

BeforeEnterEvent

BeforeEnterEvent

BeforeEnterEvent

BeforeEnterEvent

Method Detail

isRefreshEvent