com.vaadin.server

Interface VariableOwner

All Superinterfaces:

Serializable

All Known Subinterfaces:

LegacyComponent

All Known Implementing Classes:

ColorPickerPopup, CustomLayout, DragAndDropService, DragAndDropWrapper, LegacyWindow, MenuBar, Panel, UI, Upload, Window

Deprecated.

As of 7.0. Only provided to ease porting of Vaadin 6 components. Do not implement this directly, implement LegacyComponent.

@Deprecated
public interface VariableOwner
extends Serializable

Listener interface for UI variable changes. The user communicates with the application using the so-called variables. When the user makes a change using the UI the terminal trasmits the changed variables to the application, and the components owning those variables may then process those changes.

Since:

3.0

Author:

Vaadin Ltd.

Method Summary

Modifier and Type	Method and Description
void	changeVariables(Object source, Map<String,Object> variables) Deprecated. Called when one or more variables handled by the implementing class are changed.
boolean	isEnabled() Deprecated. Tests if the variable owner is enabled or not.

Method Detail

changeVariables

void changeVariables(Object source,
                     Map<String,Object> variables)

Deprecated.

Called when one or more variables handled by the implementing class are changed.

Parameters:

source - the Source of the variable change. This is the origin of the event. For example in Web Adapter this is the request.

variables - the Mapping from variable names to new variable values.

isEnabled

boolean isEnabled()

Deprecated.

Tests if the variable owner is enabled or not. The terminal should not send any variable changes to disabled variable owners.

Returns:

true if the variable owner is enabled, false if not