- Type Parameters:
E
- the type of the elements of this model
- All Superinterfaces:
ListModel<E>
- All Known Subinterfaces:
MutableComboBoxModel<E>
- All Known Implementing Classes:
DefaultComboBoxModel
,MetalFileChooserUI.DirectoryComboBoxModel
,MetalFileChooserUI.FilterComboBoxModel
public interface ComboBoxModel<E> extends ListModel<E>
A data model for a combo box. This interface extendsListDataModel
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.- Since:
- 1.2
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Object
getSelectedItem()
Returns the selected itemvoid
setSelectedItem(Object anItem)
Set the selected item.Methods declared in interface javax.swing.ListModel
addListDataListener, getElementAt, getSize, removeListDataListener
Method Detail
setSelectedItem
void setSelectedItem(Object anItem)
Set the selected item. The implementation of this method should notify all registeredListDataListener
s that the contents have changed.- Parameters:
anItem
- the list object to select ornull
to clear the selection
getSelectedItem
Object getSelectedItem()
Returns the selected item- Returns:
- The selected item or
null
if there is no selection