javax.swing
Interface ComboBoxModel

All Superinterfaces:
ListModel
All Known Subinterfaces:
MutableComboBoxModel
All Known Implementing Classes:
DefaultComboBoxModel, MetalFileChooserUI.DirectoryComboBoxModel, MetalFileChooserUI.FilterComboBoxModel

public interface ComboBoxModel
extends ListModel

A data model for a combo box. This interface extends ListDataModel and adds the concept of a selected item. The selected item is generally the item which is visible in the combo box display area.

The selected item may not necessarily be managed by the underlying ListModel. This disjoint behavior allows for the temporary storage and retrieval of a selected item in the model.

Author:
Arnaud Weber

Method Summary
 Object getSelectedItem()
          Returns the selected item
 void setSelectedItem(Object anItem)
          Set the selected item.
 
Methods inherited from interface javax.swing.ListModel
addListDataListener, getElementAt, getSize, removeListDataListener
 

Method Detail

setSelectedItem

public void setSelectedItem(Object anItem)
Set the selected item. The implementation of this method should notify all registered ListDataListeners that the contents have changed.

Parameters:
anItem - the list object to select or null to clear the selection

getSelectedItem

public Object getSelectedItem()
Returns the selected item

Returns:
The selected item or null if there is no selection