Package org.jdesktop.swingx.combobox

Class ListComboBoxModel<E>

java.lang.Object

javax.swing.AbstractListModel

org.jdesktop.swingx.combobox.ListComboBoxModel<E>

Type Parameters:

E - the type of elements maintained by the list backing this model

All Implemented Interfaces:

ActionListener, Serializable, EventListener, ComboBoxModel, ListModel<E>

Direct Known Subclasses:

EnumComboBoxModel, MapComboBoxModel

public class ListComboBoxModel<E>
extends AbstractListModel
implements ComboBoxModel, ActionListener

A ComboBoxModel for Lists.

Author:

jm158417, Karl George Schaefer

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected List<E>	data	A reference to the list backing this model.
protected E	selected	The currently selected item.
static String	UPDATE	A key used to notify the model that the backing List has changed.

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

Constructors

Constructor	Description
ListComboBoxModel(List<E> list)	Creates a ListComboBoxModel backed by the supplied list.

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(ActionEvent evt)
E	getElementAt(int index)
E	getSelectedItem()
int	getSize()
void	setSelectedItem(Object item)	Set the selected item.

Methods inherited from class javax.swing.AbstractListModel

addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener

Methods inherited from interface javax.swing.ListModel

addListDataListener, removeListDataListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UPDATE

public static final String UPDATE

A key used to notify the model that the backing List has changed.

See Also:

Constant Field Values

data

protected final List<E> data

A reference to the list backing this model.

This model does not make a copy of the list, so any changes in the list without synchronizing the model may have drastic effects.

selected

protected E selected

The currently selected item.

Constructor Detail

ListComboBoxModel

public ListComboBoxModel(List<E> list)

Creates a ListComboBoxModel backed by the supplied list.

Parameters:

list - the list backing this model

Throws:

NullPointerException - if list is null

Method Detail

setSelectedItem

public void setSelectedItem(Object item)

Set the selected item. The implementation of this method should notify all registered ListDataListeners that the contents have changed.

Specified by:

setSelectedItem in interface ComboBoxModel<E>

Parameters:

item - the list object to select or null to clear the selection

Throws:

ClassCastException - if item is not of type E

getSelectedItem

public E getSelectedItem()

Specified by:

getSelectedItem in interface ComboBoxModel<E>

getElementAt

public E getElementAt(int index)

Specified by:

getElementAt in interface ListModel<E>

getSize

public int getSize()

Specified by:

getSize in interface ListModel<E>

actionPerformed

public void actionPerformed(ActionEvent evt)

Specified by:

actionPerformed in interface ActionListener