com.vaadin.navigator.ViewProvider API 7.7.46 | Vaadin

com.vaadin.navigator.

All Superinterfaces:

Serializable

All Known Implementing Classes:

Navigator.ClassBasedViewProvider, Navigator.StaticViewProvider
```
public interface ViewProvider
extends Serializable
```
A provider for view instances that can return pre-registered views or dynamically create new views. If multiple providers are used, getViewName(String) of each is called (in registration order) until one of them returns a non-null value. The getView(String) method of that provider is then used.

Since:

7.0

Author:

Vaadin Ltd

Method Summary

All Methods
Modifier and Type	Method	Description
`View`	`getView(String viewName)`	Create or return a pre-created instance of a view.
`String`	`getViewName(String viewAndParameters)`	Extract the view name from a combined view name and parameter string.

- Method Detail
  - getViewName
```
String getViewName(String viewAndParameters)
```
    Extract the view name from a combined view name and parameter string. This method should return a view name if and only if this provider handles creation of such views.
    
    Parameters:
    
    viewAndParameters - string with view name and its fragment parameters (if given), not null
    
    Returns:
    
    view name if the view is handled by this provider, null otherwise
  - getView
```
View getView(String viewName)
```
    Create or return a pre-created instance of a view. The parameters for the view are set separately by the navigator when the view is activated.
    
    Parameters:
    
    viewName - name of the view, not null
    
    Returns:
    
    newly created view (null if none available for the view name)