javax.swing

Class DefaultSingleSelectionModel

public class DefaultSingleSelectionModel extends Object implements SingleSelectionModel, Serializable

The default implementation of {@link SingleSelectionModel}, used in {@link JTabbedPane}, {@link JMenuBar} and {@link JPopupMenu}.

Field Summary
protected ChangeEvent	changeEvent changeEvent
protected EventListenerList	listenerList listenerList

Constructor Summary
	DefaultSingleSelectionModel() Creates a new `DefaultSingleSelectionModel` with no current selection.

Method Summary
void	addChangeListener(ChangeListener listener) Registers a listener to receive {@link ChangeEvent} notifications from this model whenever the selected index changes.
void	clearSelection() Clears the selection by setting the selected index to `-1` and sends a {@link ChangeEvent} to all registered listeners.
protected void	fireStateChanged() fireStateChanged
ChangeListener[]	getChangeListeners() getChangeListeners
<T extends EventListener> T[]	getListeners(Class<T> listenerClass) getListeners
int	getSelectedIndex() Returns the selected index or `-1` if there is no selection.
boolean	isSelected() Returns `true` if there is a selection, and `false` otherwise.
void	removeChangeListener(ChangeListener listener) Deregisters a listener so that it no longer receives {@link ChangeEvent} notifications from this model.
void	setSelectedIndex(int index) Sets the selected index and, if this is different to the previous selection, sends a {@link ChangeEvent} to all registered listeners.

Field Detail

changeEvent

protected transient ChangeEvent changeEvent

changeEvent

listenerList

protected EventListenerList listenerList

listenerList

Constructor Detail

DefaultSingleSelectionModel

public DefaultSingleSelectionModel()

Creates a new DefaultSingleSelectionModel with no current selection.

Method Detail

addChangeListener

public void addChangeListener(ChangeListener listener)

Registers a listener to receive {@link ChangeEvent} notifications from this model whenever the selected index changes.

Parameters: listener the listener to add.

clearSelection

public void clearSelection()

Clears the selection by setting the selected index to -1 and sends a {@link ChangeEvent} to all registered listeners. If the selected index is already -1, this method does nothing.