E
- the type of elements maintained by the list backing this modelpublic class ListComboBoxModel<E>
extends javax.swing.AbstractListModel
implements javax.swing.ComboBoxModel, java.awt.event.ActionListener
ComboBoxModel
for List
s.Modifier and Type | Field and Description |
---|---|
protected java.util.List<E> |
data
A reference to the list backing this model.
|
protected E |
selected
The currently selected item.
|
static java.lang.String |
UPDATE
A key used to notify the model that the backing
List has changed. |
Constructor and Description |
---|
ListComboBoxModel(java.util.List<E> list)
Creates a
ListComboBoxModel backed by the supplied list . |
Modifier and Type | Method and Description |
---|---|
void |
actionPerformed(java.awt.event.ActionEvent evt) |
E |
getElementAt(int index) |
E |
getSelectedItem() |
int |
getSize() |
void |
setSelectedItem(java.lang.Object item)
Set the selected item.
|
addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener
public static final java.lang.String UPDATE
List
has changed.protected final java.util.List<E> data
This model does not make a copy of the list, so any changes in the list without synchronizing the model may have drastic effects.
protected E selected
public ListComboBoxModel(java.util.List<E> list)
ListComboBoxModel
backed by the supplied list
.list
- the list backing this modeljava.lang.NullPointerException
- if list
is null
public void setSelectedItem(java.lang.Object item)
ListDataListener
s that the contents have changed.setSelectedItem
in interface javax.swing.ComboBoxModel
item
- the list object to select or null
to clear the
selectionjava.lang.ClassCastException
- if item
is not of type E
public E getSelectedItem()
getSelectedItem
in interface javax.swing.ComboBoxModel
public E getElementAt(int index)
getElementAt
in interface javax.swing.ListModel
public int getSize()
getSize
in interface javax.swing.ListModel
public void actionPerformed(java.awt.event.ActionEvent evt)
actionPerformed
in interface java.awt.event.ActionListener