com.holonplatform.vaadin.navigator.internal

Class DefaultViewProvider

java.lang.Object

com.holonplatform.vaadin.navigator.internal.DefaultViewProvider

All Implemented Interfaces:

ViewProcessorProvider, com.vaadin.navigator.ViewProvider, Serializable

public class DefaultViewProvider
extends Object
implements ViewProcessorProvider

Default ViewProvider with StatefulView instances management.

Use registerView(String, Class) to register View classes and mapping them to view names. A view name must be unique whithin provider registered views.

View instances will be created according to view scope: for stateful views, an instance is created at first request (for each UI) and the same instance is returned to subsequent view requests. On the contrary, for standard views, a new instance is created and returned to Navigator for every view request.

View name fragment to match with registered view names is extracted from view request string (the URL part after #! characters) using the longest first part before / character which corresponds to a registered view name.

Since:

5.0.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultViewProvider() Constructor

Method Summary

Modifier and Type	Method and Description
com.vaadin.navigator.View	getView(String viewName)
String	getViewName(String viewAndParameters)
com.vaadin.navigator.View	processViewInstance(ViewConfiguration.ViewConfigurationProvider viewConfigurationProvider, com.vaadin.navigator.View view) Process given View instance for additional operations
void	registerView(String viewName, Class<? extends com.vaadin.navigator.View> viewClass) Register a View class bounding it to given viewName.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultViewProvider

public DefaultViewProvider()

Constructor

Method Detail

registerView

public void registerView(String viewName,
                         Class<? extends com.vaadin.navigator.View> viewClass)
                  throws ViewConfiguration.ViewConfigurationException

Register a View class bounding it to given viewName.

View name must be unique within registered views, otherwise a ViewConfigurationException is thrown.

Parameters:

viewName - View name

viewClass - View class

Throws:

ViewConfiguration.ViewConfigurationException - Failed to register view

getViewName

public String getViewName(String viewAndParameters)

Specified by:

getViewName in interface com.vaadin.navigator.ViewProvider

getView

public com.vaadin.navigator.View getView(String viewName)

Specified by:

getView in interface com.vaadin.navigator.ViewProvider

processViewInstance

public com.vaadin.navigator.View processViewInstance(ViewConfiguration.ViewConfigurationProvider viewConfigurationProvider,
                                                     com.vaadin.navigator.View view)
                                              throws ViewConfiguration.ViewConfigurationException

Description copied from interface: ViewProcessorProvider

Process given View instance for additional operations

Specified by:

processViewInstance in interface ViewProcessorProvider

Parameters:

viewConfigurationProvider - ViewConfigurationProvider

view - View instance

Returns:

Processed View

Throws:

ViewConfiguration.ViewConfigurationException - Error processing View instance