public class

DefaultSingleSelectionModel

extends Object
implements Serializable SingleSelectionModel
java.lang.Object
   ↳ javax.swing.DefaultSingleSelectionModel

Class Overview

A generic implementation of SingleSelectionModel.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

Summary

Fields
protected ChangeEvent changeEvent
protected EventListenerList listenerList The collection of registered listeners
Public Constructors
DefaultSingleSelectionModel()
Public Methods
void addChangeListener(ChangeListener l)
Adds a ChangeListener to the button.
void clearSelection()
Clears the selection (to -1).
ChangeListener[] getChangeListeners()
Returns an array of all the change listeners registered on this DefaultSingleSelectionModel.
<T extends EventListener> T[] getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered as FooListeners upon this model.
int getSelectedIndex()
Returns the model's selection.
boolean isSelected()
Returns true if the selection model currently has a selected value.
void removeChangeListener(ChangeListener l)
Removes a ChangeListener from the button.
void setSelectedIndex(int index)
Sets the model's selected index to index.
Protected Methods
void fireStateChanged()
Notifies all listeners that have registered interest for notification on this event type.
[Expand]
Inherited Methods
From class java.lang.Object
From interface javax.swing.SingleSelectionModel

Fields

protected ChangeEvent changeEvent

protected EventListenerList listenerList

The collection of registered listeners

Public Constructors

public DefaultSingleSelectionModel ()

Public Methods

public void addChangeListener (ChangeListener l)

Adds a ChangeListener to the button.

Parameters
l the ChangeListener to add

public void clearSelection ()

Clears the selection (to -1).

public ChangeListener[] getChangeListeners ()

Returns an array of all the change listeners registered on this DefaultSingleSelectionModel.

Returns
  • all of this model's ChangeListeners or an empty array if no change listeners are currently registered
See Also

public T[] getListeners (Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model. FooListeners are registered using the addFooListener method.

You can specify the listenerType argument with a class literal, such as FooListener.class. For example, you can query a DefaultSingleSelectionModel instance m for its change listeners with the following code: 

ChangeListener[] cls = (ChangeListener[])(m.getListeners(ChangeListener.class));
If no such listeners exist, this method returns an empty array.

Parameters
listenerType the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener
Returns
  • an array of all objects registered as FooListeners on this model, or an empty array if no such listeners have been added
Throws
ClassCastException if listenerType doesn't specify a class or interface that implements java.util.EventListener
See Also

public int getSelectedIndex ()

Returns the model's selection.

Returns
  • the model's selection, or -1 if there is no selection

public boolean isSelected ()

Returns true if the selection model currently has a selected value.

Returns
  • true if a value is currently selected

public void removeChangeListener (ChangeListener l)

Removes a ChangeListener from the button.

Parameters
l the ChangeListener to remove

public void setSelectedIndex (int index)

Sets the model's selected index to index. Notifies any listeners if the model changes

Parameters
index an int specifying the model selection

Protected Methods

protected void fireStateChanged ()

Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.

See Also