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 JavaBeans
 has been added to the java.beans package.
 Please see XMLEncoder.
- Since:
- 1.2
- 
Field SummaryFieldsModifier and TypeFieldDescriptionprotected ChangeEventOnly one ModelChangeEvent is needed per model instance since the event's only (read-only) state is the source property.protected EventListenerListThe collection of registered listeners
- 
Constructor SummaryConstructors
- 
Method SummaryModifier and TypeMethodDescriptionvoidAdds aChangeListenerto the button.voidClears the selection (to -1).protected voidNotifies all listeners that have registered interest for notification on this event type.Returns an array of all the change listeners registered on thisDefaultSingleSelectionModel.<T extends EventListener>
 T[]getListeners(Class<T> listenerType) Returns an array of all the objects currently registered asFooListeners upon this model.intReturns the model's selection.booleanReturns true if the selection model currently has a selected value.voidRemoves aChangeListenerfrom the button.voidsetSelectedIndex(int index) Sets the model's selected index to index.
- 
Field Details- 
changeEventOnly one ModelChangeEvent is needed per model instance since the event's only (read-only) state is the source property. The source of events generated here is always "this".
- 
listenerListThe collection of registered listeners
 
- 
- 
Constructor Details- 
DefaultSingleSelectionModelpublic DefaultSingleSelectionModel()Constructs aDefaultSingleSelectionModel.
 
- 
- 
Method Details- 
getSelectedIndexpublic int getSelectedIndex()Returns the model's selection.- Specified by:
- getSelectedIndexin interface- SingleSelectionModel
- Returns:
- the model's selection, or -1 if there is no selection
- See Also:
 
- 
setSelectedIndexpublic void setSelectedIndex(int index) Sets the model's selected index to index. Notifies any listeners if the model changes- Specified by:
- setSelectedIndexin interface- SingleSelectionModel
- Parameters:
- index- an int specifying the model selection
- See Also:
 
- 
clearSelectionpublic void clearSelection()Clears the selection (to -1).- Specified by:
- clearSelectionin interface- SingleSelectionModel
 
- 
isSelectedpublic boolean isSelected()Returns true if the selection model currently has a selected value.- Specified by:
- isSelectedin interface- SingleSelectionModel
- Returns:
- true if a value is currently selected
 
- 
addChangeListenerAdds aChangeListenerto the button.- Specified by:
- addChangeListenerin interface- SingleSelectionModel
- Parameters:
- l- the ChangeListener to add
 
- 
removeChangeListenerRemoves aChangeListenerfrom the button.- Specified by:
- removeChangeListenerin interface- SingleSelectionModel
- Parameters:
- l- the ChangeListener to remove
 
- 
getChangeListenersReturns an array of all the change listeners registered on thisDefaultSingleSelectionModel.- Returns:
- all of this model's ChangeListeners or an empty array if no change listeners are currently registered
- Since:
- 1.4
- See Also:
 
- 
fireStateChangedprotected void fireStateChanged()Notifies all listeners that have registered interest for notification on this event type. The event instance is created lazily.- See Also:
 
- 
getListenersReturns an array of all the objects currently registered asFooListeners upon this model.FooListeners are registered using theaddFooListenermethod.You can specify the listenerTypeargument with a class literal, such asFooListener.class. For example, you can query aDefaultSingleSelectionModelinstancemfor 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.- Type Parameters:
- T- the type of- EventListenerclass being requested
- 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- listenerTypedoesn't specify a class or interface that implements- java.util.EventListener
- Since:
- 1.3
- See Also:
 
 
-