AccessEvaluator (Spring Boot Security for Vaadin Flow 0.9.4 API)

All Known Implementing Classes:

RequiresRole.Evaluator, SecuredRoute.NotSetAccessEvaluator
```
public interface AccessEvaluator
```
A AccessEvaluator is the programmatic alternative to expression-based access control. Instantiator.getOrCreate(Class) is used to create an instance of evaluators, so they may be singleton Spring beans or just classes with a public no-args constructor.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`hasAccess(com.vaadin.flow.router.BeforeEnterEvent beforeEnterEvent, Class<?> targetOrLayout)`	Returns whether the user should be granted access to the navigation target.

- Method Detail
  - hasAccess
```
boolean hasAccess(com.vaadin.flow.router.BeforeEnterEvent beforeEnterEvent,
                  Class<?> targetOrLayout)
```
    Returns whether the user should be granted access to the navigation target. The provided class is either the navigation target itself or one of its parent layouts currently being evaluated.
    When access is denied, it's allowed to call the forward or reroute methods on the event.
    VaadinSecurity can be very useful in implementations.
    
    Parameters:
    
    beforeEnterEvent - the attempted navigation to be checked for access
    
    targetOrLayout - the current target or layout class being evaluated
    
    Returns:
    
    whether the user should have access to the navigation target