com.pow2.webgui
Class WidgetFactory

java.lang.Object
  com.pow2.webgui.WidgetFactory

public class WidgetFactory
extends Object

Widget Factory class.

Author:

Luca Fossato

Method Summary

boolean	containsWidgetInfo(String key) Test if the WidgetFactory hashmap contains the WidgetInfo object having the input key.
Widget	getWidget(String key) Get a Widget object.
static WidgetFactory	instance() Get the instance of WidgetFactory class.
void	removeWidgetInfo(String key) Remove the widgetInfo object having the input key from the WidgetFactory hashmap.
void	setWidgets(String propsFile) Register all the widget prototypes declared into the input properties file.

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static WidgetFactory instance()

Get the instance of WidgetFactory class.

Returns:

the instance of WidgetFactory class

containsWidgetInfo

public boolean containsWidgetInfo(String key)

Test if the WidgetFactory hashmap contains the WidgetInfo object having the input key.

Parameters:

key - the widgetInfo key

Returns:

true if the widget map contains the widgetInfo object having the input key; false otherwise

removeWidgetInfo

public void removeWidgetInfo(String key)

Remove the widgetInfo object having the input key from the WidgetFactory hashmap.

Parameters:

key - the prototype key.

getWidget

public Widget getWidget(String key)
                 throws Exception

Get a Widget object.

Parameters:

key - the key used to retrieve an instance of the registered widget from the factory hashmap

Returns:

the Widget object

Throws:

Exception - if any error occurs

setWidgets

public void setWidgets(String propsFile)
                throws Exception

Register all the widget prototypes declared into the input properties file.

Parameters:

propsFile - The new prototypes value

Throws:

Exception - if any error occurs