When you design your view structure you might create views that are only used as parent views for other views but are not intended to be used for accessing features directly. For this cases the view can be marked as non listing view. A non listing view will not evaluate its members directly but provides a filter statement that is then used together with the (listing) subordinate views of this view.
When a Client requests to list members of a view from the Application Server the Application Server will return an empty list if the view is non listing. However the view still has members and any privileges with transformable view permissions will still be applied to all member features.