org.jdesktop.swingx.combobox
Class MapComboBoxModel<K,V>

java.lang.Object
  javax.swing.AbstractListModel
      org.jdesktop.swingx.combobox.ListComboBoxModel<K>
          org.jdesktop.swingx.combobox.MapComboBoxModel<K,V>

Type Parameters:

K - the type of keys maintained by the map backing this model

V - the type of mapped values

All Implemented Interfaces:

ActionListener, Serializable, EventListener, ComboBoxModel, ListModel

public class MapComboBoxModel<K,V>
extends ListComboBoxModel<K>

A ComboBoxModel for Maps. The model will always present a Map consistently, once it is instantiated. However, unless the Map is ordered, as a java.util.TreeMap is, the model is not guaranteed to present the maps in a consistent order between instantiations.

See Also:

Serialized Form

Field Summary

protected Map<K,V>

map_data The map backing this model.

Fields inherited from class org.jdesktop.swingx.combobox.ListComboBoxModel

data, selected, UPDATE

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

MapComboBoxModel()
Creates an empty model.

MapComboBoxModel(Map<K,V> map)
Creates a model backed by the specified map.

Method Summary

void	actionPerformed(ActionEvent evt) Invoked when an action occurs.
int	getSize() Returns the length of the list.
V	getValue(int selectedItem) Selects an item from the model and returns that map value.
V	getValue(Object selectedItem) Selects an item from the model and returns that map value.

Methods inherited from class org.jdesktop.swingx.combobox.ListComboBoxModel

getElementAt, getSelectedItem, setSelectedItem

Methods inherited from class javax.swing.AbstractListModel

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.ListModel

addListDataListener, removeListDataListener

Field Detail

map_data

protected Map<K,V> map_data

The map backing this model.

Constructor Detail

MapComboBoxModel

public MapComboBoxModel()

Creates an empty model.

MapComboBoxModel

public MapComboBoxModel(Map<K,V> map)

Creates a model backed by the specified map.

Parameters:

map - the map backing this model

Method Detail

getSize

public int getSize()

Returns the length of the list.

Specified by:

getSize in interface ListModel

Overrides:

getSize in class ListComboBoxModel<K>

Returns:

the length of the list

actionPerformed

public void actionPerformed(ActionEvent evt)

Invoked when an action occurs.

Specified by:

actionPerformed in interface ActionListener

Overrides:

actionPerformed in class ListComboBoxModel<K>

getValue

public V getValue(Object selectedItem)

Selects an item from the model and returns that map value.

Parameters:

selectedItem - the item to select

Returns:

the value for the selected item

getValue

public V getValue(int selectedItem)

Selects an item from the model and returns that map value.

Parameters:

selectedItem - selects the item at the specified index in this model

Returns:

the value for the item at the selected index