com.vaadin.flow.router.internal.BeforeLeaveHandler API 10.0.25 | Vaadin

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com.vaadin.flow.router.internal.

All Superinterfaces:

Serializable

All Known Subinterfaces:

BeforeLeaveListener, BeforeLeaveObserver

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 BeforeLeaveHandler
extends Serializable
```
The base interface for every BeforeLeaveEvent handler.

Since:

1.0

- Method Summary
  
  All Methods
  Modifier and Type Method and Description
  
  void beforeLeave(BeforeLeaveEvent event)
  Callback executed before navigation to detaching Component chain is made.

- Method Detail
  - beforeLeave
```
void beforeLeave(BeforeLeaveEvent event)
```
    Callback executed before navigation to detaching Component chain is made.
    
    Parameters:
    
    event - before navigation event with event details