DefaultSingleSelectionModel (Java Platform SE 6) (original) (raw)

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.

changeEvent

protected transient ChangeEvent changeEvent

listenerList

protected EventListenerList listenerList

The collection of registered listeners

DefaultSingleSelectionModel

public DefaultSingleSelectionModel()

getSelectedIndex

public int getSelectedIndex()

Description copied from interface: [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html#getSelectedIndex%28%29)

Returns the model's selection.

Specified by:

[getSelectedIndex](../../javax/swing/SingleSelectionModel.html#getSelectedIndex%28%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

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](../../javax/swing/SingleSelectionModel.html#setSelectedIndex%28int%29)

Sets the model's selected index to index. Notifies any listeners if the model changes

Specified by:

[setSelectedIndex](../../javax/swing/SingleSelectionModel.html#setSelectedIndex%28int%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

Parameters:

index - an int specifying the model selection

See Also:

SingleSelectionModel.getSelectedIndex(), SingleSelectionModel.addChangeListener(javax.swing.event.ChangeListener)

clearSelection

public void clearSelection()

Description copied from interface: [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html#clearSelection%28%29)

Clears the selection (to -1).

Specified by:

[clearSelection](../../javax/swing/SingleSelectionModel.html#clearSelection%28%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

isSelected

public boolean isSelected()

Description copied from interface: [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html#isSelected%28%29)

Returns true if the selection model currently has a selected value.

Specified by:

[isSelected](../../javax/swing/SingleSelectionModel.html#isSelected%28%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

Returns:

true if a value is currently selected

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a ChangeListener to the button.

Specified by:

[addChangeListener](../../javax/swing/SingleSelectionModel.html#addChangeListener%28javax.swing.event.ChangeListener%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

Parameters:

l - the ChangeListener to add

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a ChangeListener from the button.

Specified by:

[removeChangeListener](../../javax/swing/SingleSelectionModel.html#removeChangeListener%28javax.swing.event.ChangeListener%29) in interface [SingleSelectionModel](../../javax/swing/SingleSelectionModel.html "interface in javax.swing")

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 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 <T extends EventListener> T[] getListeners(Class listenerType)

Returns an array of all the objects currently registered as_Foo_Listeners upon this model._Foo_Listeners are registered using the add_Foo_Listener method.

You can specify the listenerType argument with a class literal, such as _Foo_Listener.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_Foo_Listeners on this model, or an empty array if no such listeners have been added

Throws:

[ClassCastException](../../java/lang/ClassCastException.html "class in java.lang") - if listenerType doesn't specify a class or interface that implementsjava.util.EventListener

Since:

1.3

See Also:

getChangeListeners()

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