com.webobjects.eointerface.swing
Class EOSwingComboBoxPlugin

java.lang.Object
  com.webobjects.eointerface.EOWidgetAssociation.WidgetPlugin
      com.webobjects.eointerface.EOValueSelectionAssociation.ValueSelectionPlugin
          com.webobjects.eointerface.swing.EOSwingComboBoxPlugin

All Implemented Interfaces:

EOWidgetAssociation.WidgetPlugin.Formatting, NSDisposable, ActionListener, EventListener

public class EOSwingComboBoxPlugin
extends EOValueSelectionAssociation.ValueSelectionPlugin
implements ActionListener, EOWidgetAssociation.WidgetPlugin.Formatting

EOSwingComboBoxPlugin is a concrete subclass of EOValueSelectionAssociation.ValueSelectionPlugin which is used with Swing's JComboBox.

Associations classes: EOValueSelectionAssociation

Widgets classes: JComboBox

Nested Class Summary

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

EOWidgetAssociation.WidgetPlugin.Formatting

Field Summary

Fields inherited from class com.webobjects.eointerface.EOValueSelectionAssociation.ValueSelectionPlugin

NoSelection

Constructor Summary

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

Method Summary

void	actionPerformed(ActionEvent event) Invokes widgetSelectionDidChange on this plugin's EOValueSelectionAssociation.
void	breakConnection() Clean up (end) the plugin's connection to its JComboBox widget.
void	establishConnection() Establishes a connection between the plugin and its UI widget.
int	selectionIndex() Returns the selected choice in the JComboBox.
void	setSelectionIndex(int selectionIndex, boolean isEnabled) Sets the selected choice and whether the JCombobox is enabled
void	setTitlesFromObjects(Object[] objects) Sets the titles in the plugin's JComboBox.
void	setValueFormatter(Object formatter) Sets a formatter for the available choices (titles) in the JComboBox, which will format an array of objects coming from the EOValueSelectionAssociation into displayed strings.
String[]	titles() Returns an array of available titles in the plugin's combo box
Object	valueFormatter() Returns the format set with setValueFormatter.
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.

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

EOSwingComboBoxPlugin

public EOSwingComboBoxPlugin(EOWidgetAssociation association,
                             Object widget)

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

Parameters:

association - Association of class EOValueSelectionAssociation or subclass for the plugin to use

widget - Widget of class JComboBox 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 action events from the JComboBox are sent to this plugin.

Overrides:

establishConnection in class EOWidgetAssociation.WidgetPlugin

breakConnection

public void breakConnection()

Clean up (end) the plugin's connection to its JComboBox widget. This makes sure that action events from the JComboBox 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

setTitlesFromObjects

public void setTitlesFromObjects(Object[] objects)

Sets the titles in the plugin's JComboBox.

If objects is null, clear out titles -- (only invoked if EOAssociation.TitlesAspect is bound).

Specified by:

setTitlesFromObjects in class EOValueSelectionAssociation.ValueSelectionPlugin

Parameters:

objects - an object array of the choices to display in the combo box

titles

public String[] titles()

Returns an array of available titles in the plugin's combo box

Specified by:

titles in class EOValueSelectionAssociation.ValueSelectionPlugin

Returns:

String array of available titles in the plugin's combo box

setSelectionIndex

public void setSelectionIndex(int selectionIndex,
                              boolean isEnabled)

Sets the selected choice and whether the JCombobox is enabled

Specified by:

setSelectionIndex in class EOValueSelectionAssociation.ValueSelectionPlugin

Parameters:

selectionIndex - the selected choice, as an index into the array of titles

isEnabled - whether or not the JComboBox will be enabled

selectionIndex

public int selectionIndex()

Returns the selected choice in the JComboBox.

Specified by:

selectionIndex in class EOValueSelectionAssociation.ValueSelectionPlugin

Returns:

the selected choice as an index into the array of titles.

setValueFormatter

public void setValueFormatter(Object formatter)

Sets a formatter for the available choices (titles) in the JComboBox, which will format an array of objects coming from the EOValueSelectionAssociation into displayed strings.

Specified by:

setValueFormatter in interface EOWidgetAssociation.WidgetPlugin.Formatting

Parameters:

formatter - an object of class Format or subclass whose format(Object) method will be called for each title displayed

valueFormatter

public Object valueFormatter()

Returns the format set with setValueFormatter.

Specified by:

valueFormatter in interface EOWidgetAssociation.WidgetPlugin.Formatting

Returns:

the format, which is an instance of Format or a subclass

actionPerformed

public void actionPerformed(ActionEvent event)

Invokes widgetSelectionDidChange on this plugin's EOValueSelectionAssociation.

Specified by:

actionPerformed in interface ActionListener

Parameters:

event - the ActionEvent received from the AWT event dispatcher