Serializable
, SingleSelectionModel
public class DefaultSingleSelectionModel extends Object implements SingleSelectionModel, Serializable
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
.
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 | Description |
---|---|
DefaultSingleSelectionModel() |
Constructs a DefaultSingleSelectionModel . |
Modifier and Type | Method | Description |
---|---|---|
void |
addChangeListener |
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 . |
<T extends EventListener> |
getListeners |
Returns an array of all the objects currently registered as FooListener s 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 |
Removes a ChangeListener from the button. |
void |
setSelectedIndex |
Sets the model's selected index to index. |
protected transient ChangeEvent changeEvent
protected EventListenerList listenerList
public DefaultSingleSelectionModel()
DefaultSingleSelectionModel
.public int getSelectedIndex()
getSelectedIndex
in interface SingleSelectionModel
public void setSelectedIndex(int index)
setSelectedIndex
in interface SingleSelectionModel
index
- an int specifying the model selectionpublic void clearSelection()
clearSelection
in interface SingleSelectionModel
public boolean isSelected()
isSelected
in interface SingleSelectionModel
public void addChangeListener(ChangeListener l)
ChangeListener
to the button.addChangeListener
in interface SingleSelectionModel
l
- the ChangeListener to addpublic void removeChangeListener(ChangeListener l)
ChangeListener
from the button.removeChangeListener
in interface SingleSelectionModel
l
- the ChangeListener to removepublic ChangeListener[] getChangeListeners()
DefaultSingleSelectionModel
.ChangeListener
s or an empty array if no change listeners are currently registeredprotected void fireStateChanged()
public <T extends EventListener> T[] getListeners(Class<T> listenerType)
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.
T
- the type of EventListener
class being requestedlistenerType
- the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener
FooListener
s on this model, or an empty array if no such listeners have been addedClassCastException
- if listenerType
doesn't specify a class or interface that implements java.util.EventListener
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/DefaultSingleSelectionModel.html