com.vaadin.navigator

Class Navigator.StaticViewProvider

java.lang.Object

com.vaadin.navigator.Navigator.StaticViewProvider

All Implemented Interfaces:

ViewProvider, Serializable

Enclosing class:

Navigator

public static class Navigator.StaticViewProvider
extends Object
implements ViewProvider

A ViewProvider which supports mapping a single view name to a single pre-initialized view instance. For most cases, ClassBasedViewProvider should be used instead of this.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
StaticViewProvider(String viewName, View view) Creates a new view provider which returns a pre-created view instance.

Method Summary

Modifier and Type	Method and Description
View	getView(String viewName) Create or return a pre-created instance of a view.
String	getViewName() Get the view name for this provider.
String	getViewName(String navigationState) Extract the view name from a combined view name and parameter string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StaticViewProvider

public StaticViewProvider(String viewName,
                          View view)

Creates a new view provider which returns a pre-created view instance.

Parameters:

viewName - name of the view (not null)

view - view instance to return (not null), reused on every request

Method Detail

getViewName

public String getViewName(String navigationState)

Description copied from interface: ViewProvider

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.

Specified by:

getViewName in interface ViewProvider

Parameters:

navigationState - 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

public View getView(String viewName)

Description copied from interface: ViewProvider

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.

Specified by:

getView in interface ViewProvider

Parameters:

viewName - name of the view, not null

Returns:

newly created view (null if none available for the view name)

getViewName

public String getViewName()

Get the view name for this provider.

Returns:

view name for this provider