com.vaadin.spring.access

Interface ViewInstanceAccessControl

public interface ViewInstanceAccessControl

Interface to be implemented by Spring beans that will be consulted by the SpringViewProvider after creating a view instance but before providing it for navigation. If any of the view access controls deny access, the view provider will act like no such view ever existed, or show an access denied view. Unless contextual information from the view instance is needed, a ViewAccessControl should be used instead of this interface. ViewAccessControl beans are called before a view instance is created but can access the annotations on the view bean through the application context. If any ViewAccessControl denies access to the view, beans implementing this interface are not called for the view.

Author:

Petter Holmström (petter@vaadin.com), Henri Sara (hesara@vaadin.com)

Method Summary

Modifier and Type	Method and Description
boolean	isAccessGranted(com.vaadin.ui.UI ui, String beanName, com.vaadin.navigator.View view) Checks if the current user has access to the specified view instance and UI.

Method Detail

isAccessGranted

boolean isAccessGranted(com.vaadin.ui.UI ui,
                        String beanName,
                        com.vaadin.navigator.View view)

Checks if the current user has access to the specified view instance and UI. This method is invoked after ViewAccessControl.isAccessGranted(com.vaadin.ui.UI, String), when the view instance has already been created, but before it has been returned by the view provider.

Parameters:

ui - the UI, never null.

beanName - the bean name of the view, never null.

view - the view instance, never null.

Returns:

true if access is granted, false if access is denied.