com.vaadin.terminal.gwt.client.


Class WidgetSet

java.lang.Object
  com.vaadin.terminal.gwt.client.WidgetSet


public class WidgetSet
extends Object

Constructor Summary
WidgetSet()
           
 
Method Summary
 Paintable createWidget(UIDL uidl, ApplicationConfiguration conf)
          Create an uninitialized component that best matches given UIDL.
 Class<? extends Paintable>[] getDeferredLoadedWidgets()
           
 Class<? extends Paintable> getImplementationByClassName(String fullyqualifiedName)
          Due its nature, GWT does not support dynamic classloading.
 boolean isCorrectImplementation(com.google.gwt.user.client.ui.Widget currentWidget, UIDL uidl, ApplicationConfiguration conf)
          Test if the given component implementation conforms to UIDL.
 void loadImplementation(Class<? extends Paintable> nextType)
           
protected  Class<? extends Paintable> resolveWidgetType(UIDL uidl, ApplicationConfiguration conf)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

WidgetSet

public WidgetSet()
Method Detail

createWidget

public Paintable createWidget(UIDL uidl,
                              ApplicationConfiguration conf)

Create an uninitialized component that best matches given UIDL. The component must be a Widget that implements Paintable.

Parameters:
uidl - UIDL to be painted with returned component.
client - the application connection that whishes to instantiate widget
Returns:
New uninitialized and unregistered component that can paint given UIDL.

resolveWidgetType

protected Class<? extends Paintable> resolveWidgetType(UIDL uidl,
                                                       ApplicationConfiguration conf)

isCorrectImplementation

public boolean isCorrectImplementation(com.google.gwt.user.client.ui.Widget currentWidget,
                                       UIDL uidl,
                                       ApplicationConfiguration conf)

Test if the given component implementation conforms to UIDL.

Parameters:
currentWidget - Current implementation of the component
uidl - UIDL to test against
Returns:
true iff createWidget would return a new component of the same class than currentWidget

getImplementationByClassName

public Class<? extends Paintable> getImplementationByClassName(String fullyqualifiedName)

Due its nature, GWT does not support dynamic classloading. To bypass this limitation, widgetset must have function that returns Class by its fully qualified name.

Parameters:
fullyQualifiedName -
applicationConfiguration -
Returns:

getDeferredLoadedWidgets

public Class<? extends Paintable>[] getDeferredLoadedWidgets()

loadImplementation

public void loadImplementation(Class<? extends Paintable> nextType)