javax.swing
Class DefaultSingleSelectionModel

java.lang.Object
  |
  +--javax.swing.DefaultSingleSelectionModel
All Implemented Interfaces:
Serializable, SingleSelectionModel
public class DefaultSingleSelectionModel
extends Object
implements SingleSelectionModel, Serializable

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.

 

Field Summary

protected  ChangeEvent changeEvent
    
protected  EventListenerList listenerList
    The collection of registered listeners
 

 

Constructor Summary

DefaultSingleSelectionModel()
    
 

 

Method Summary

 void addChangeListener(ChangeListener l)
    Adds a ChangeListener to the button.
 void clearSelection()
    Clears the selection (to -1).
protected  void fireStateChanged()
    Notifies all listeners that have registered interest for notification on this event type.
 ChangeListener[] getChangeListeners()
    Returns an array of all the change listeners registered on this DefaultSingleSelectionModel.
 EventListener[] getListeners(Class 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.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

 

Field Detail

 

changeEvent

protected transient ChangeEvent changeEvent

 

listenerList

protected EventListenerList listenerList
The collection of registered listeners

 

Constructor Detail

 

DefaultSingleSelectionModel

public DefaultSingleSelectionModel()

 

Method Detail

 

getSelectedIndex

public int getSelectedIndex()
Description copied from interface: SingleSelectionModel
Returns the model's selection.

Specified by:
getSelectedIndex in interface SingleSelectionModel
Returns:
the model's selection, or -1 if there is no selection
See Also:
SingleSelectionModel.setSelectedIndex(int)

 

setSelectedIndex

public void setSelectedIndex(int index)
Description copied from interface: SingleSelectionModel
Sets the model's selected index to index. Notifies any listeners if the model changes

Specified by:
setSelectedIndex in interface SingleSelectionModel
See Also:
SingleSelectionModel.getSelectedIndex(), SingleSelectionModel.addChangeListener(javax.swing.event.ChangeListener)

 

clearSelection

public void clearSelection()
Description copied from interface: SingleSelectionModel
Clears the selection (to -1).

Specified by:
clearSelection in interface SingleSelectionModel

 

isSelected

public boolean isSelected()
Description copied from interface: SingleSelectionModel
Returns true if the selection model currently has a selected value.

Specified by:
isSelected in interface SingleSelectionModel
Returns:
true if a value is currently selected

 

addChangeListener

public void addChangeListener(ChangeListener l)
Adds a ChangeListener to the button.

Specified by:
addChangeListener in interface SingleSelectionModel

 

removeChangeListener

public void removeChangeListener(ChangeListener l)
Removes a ChangeListener from the button.

Specified by:
removeChangeListener in interface SingleSelectionModel

 

getChangeListeners

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
Since:
1.4
See Also:
addChangeListener(javax.swing.event.ChangeListener), removeChangeListener(javax.swing.event.ChangeListener)

 

fireStateChanged

protected void fireStateChanged()
Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.

See Also:
EventListenerList

 

getListeners

public EventListener[] getListeners(Class 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
Since:
1.3
See Also:
getChangeListeners()