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
- See Also:
- Serialized Form
Field Summary
Modifier and Type | Field | Description |
---|---|---|
protected ChangeEvent | changeEvent | Only one ModelChangeEvent is needed per model instance since the event's only (read-only) state is the source property. |
protected EventListenerList | listenerList | The collection of registered listeners |
Constructor Summary
Constructor | Description |
---|---|
DefaultSingleSelectionModel() |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | addChangeListener(ChangeListener l) | Adds a |
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 |
<T extends EventListener> | getListeners(Class<T> listenerType) | Returns an array of all the objects currently registered as |
void | removeChangeListener(ChangeListener l) | Removes a |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.swing.SingleSelectionModel
clearSelection, getSelectedIndex, isSelected, setSelectedIndex
Field Detail
changeEvent
protected transient ChangeEvent changeEvent
Only 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".
listenerList
protected EventListenerList listenerList
The collection of registered listeners
Constructor Detail
DefaultSingleSelectionModel
public DefaultSingleSelectionModel()
Method Detail
addChangeListener
public void addChangeListener(ChangeListener l)
Adds a ChangeListener
to the button.
- Specified by:
-
addChangeListener
in interfaceSingleSelectionModel
- Parameters:
-
l
- the ChangeListener to add
removeChangeListener
public void removeChangeListener(ChangeListener l)
Removes a ChangeListener
from the button.
- Specified by:
-
removeChangeListener
in interfaceSingleSelectionModel
- Parameters:
-
l
- the ChangeListener to remove
getChangeListeners
public ChangeListener[] getChangeListeners()
Returns an array of all the change listeners registered on this DefaultSingleSelectionModel
.
- Returns:
- all of this model's
ChangeListener
s 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 <T extends EventListener> T[] getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered as FooListener
s upon this model. FooListener
s 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.
- Type Parameters:
-
T
- the type ofEventListener
class being requested - Parameters:
-
listenerType
- the type of listeners requested; this parameter should specify an interface that descends fromjava.util.EventListener
- Returns:
- an array of all objects registered as
FooListener
s on this model, or an empty array if no such listeners have been added - Throws:
-
ClassCastException
- iflistenerType
doesn't specify a class or interface that implementsjava.util.EventListener
- Since:
- 1.3
- See Also:
getChangeListeners()