com.webobjects.eointerface.swing
Class EOSwingCheckBoxPlugin

java.lang.Object
  com.webobjects.eointerface.EOWidgetAssociation.WidgetPlugin
      com.webobjects.eointerface.EOValueAssociation.ValuePlugin
          com.webobjects.eointerface.swing.EOSwingCheckBoxPlugin

All Implemented Interfaces:

NSDisposable, ItemListener, EventListener

public class EOSwingCheckBoxPlugin
extends EOValueAssociation.ValuePlugin
implements ItemListener

EOSwingCheckBoxPlugin is a concrete subclass of EOValueAssociation.ValuePlugin which is used with Swing's JCheckBox.

Associations classes: EOValueAssociation

Widgets classes: JCheckBox

Nested Class Summary

Nested classes/interfaces inherited from class com.webobjects.eointerface.EOWidgetAssociation.WidgetPlugin

EOWidgetAssociation.WidgetPlugin.Formatting

Constructor Summary

EOSwingCheckBoxPlugin(EOWidgetAssociation association, Object widget)
Creates a new EOSwingCheckBoxPlugin connected to an association and a UI widget.

Method Summary

void	breakConnection() Clean up (end) the plugin's connection to its JCheckBox widget.
void	establishConnection() Establishes a connection between the plugin and its UI widget.
void	itemStateChanged(ItemEvent event) Invokes widgetDidChange on the plugin's EOValueAssociation.
void	setValue(Object value, boolean isEnabled) Sets the checkbox to 'checked' or 'not-checked' and also sets the enabled state.
Object	value() Return whether or not the checkbox is checked.
String[]	widgetKeysTaken() Returns an array of Strings which represent outlet names in Interface Builder.

Methods inherited from class com.webobjects.eointerface.EOValueAssociation.ValuePlugin

endEditing, useURLAsValue

Methods inherited from class com.webobjects.eointerface.EOWidgetAssociation.WidgetPlugin

association, dispose, unacceptableAspects, widget

Methods inherited from class java.lang.Object

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

Constructor Detail

EOSwingCheckBoxPlugin

public EOSwingCheckBoxPlugin(EOWidgetAssociation association,
                             Object widget)

Creates a new EOSwingCheckBoxPlugin connected to an association and a UI widget.

Parameters:

association - association of class EOValueAssociation or subclass for the plugin to use

widget - widget of class JCheckBox or subclass that the plugin will manage

Method Detail

establishConnection

public void establishConnection()

Establishes a connection between the plugin and its UI widget. This makes sure that ItemEvent's from the JCheckBox are sent to this plugin.

Overrides:

establishConnection in class EOWidgetAssociation.WidgetPlugin

breakConnection

public void breakConnection()

Clean up (end) the plugin's connection to its JCheckBox widget. This makes sure that ItemEvent's from the JCheckBox are not sent anymore to this plugin.

Overrides:

breakConnection in class EOWidgetAssociation.WidgetPlugin

widgetKeysTaken

public String[] widgetKeysTaken()

Returns an array of Strings which represent outlet names in Interface Builder. These outlets are disabled by Interface Builder once the button is connected to this plugins association.

Overrides:

widgetKeysTaken in class EOWidgetAssociation.WidgetPlugin

Returns:

String array of outlet names

setValue

public void setValue(Object value,
                     boolean isEnabled)

Sets the checkbox to 'checked' or 'not-checked' and also sets the enabled state.

Specified by:

setValue in class EOValueAssociation.ValuePlugin

Parameters:

value - the new value of the checkbox, either a Boolean or Number object

isEnabled - enables or disables the checkbox

value

public Object value()

Return whether or not the checkbox is checked.

Specified by:

value in class EOValueAssociation.ValuePlugin

Returns:

a Boolean object indicating whether or not the checkbox is checked

itemStateChanged

public void itemStateChanged(ItemEvent event)

Invokes widgetDidChange on the plugin's EOValueAssociation.

Specified by:

itemStateChanged in interface ItemListener

Parameters:

event - the ItemEvent received from the AWT event dispatcher