Class AbstractListModel<E>
- java.lang.Object
-
- javax.swing.AbstractListModel<E>
- Type Parameters:
-
E
- the type of the elements of this model
- All Implemented Interfaces:
-
Serializable
,ListModel<E>
- Direct Known Subclasses:
-
BasicDirectoryModel
,DefaultComboBoxModel
,DefaultListModel
,MetalFileChooserUI.DirectoryComboBoxModel
,MetalFileChooserUI.FilterComboBoxModel
public abstract class AbstractListModel<E> extends Object implements ListModel<E>, Serializable
The abstract definition for the data model that provides a List
with its contents.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans
package. Please see XMLEncoder
.
- Since:
- 1.2
- See Also:
- Serialized Form
Field Summary
Modifier and Type | Field | Description |
---|---|---|
protected EventListenerList | listenerList | The listener list. |
Constructor Summary
Constructor | Description |
---|---|
AbstractListModel() |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | addListDataListener(ListDataListener l) | Adds a listener to the list that's notified each time a change to the data model occurs. |
protected void | fireContentsChanged(Object source,
int index0,
int index1) |
|
protected void | fireIntervalAdded(Object source,
int index0,
int index1) |
|
protected void | fireIntervalRemoved(Object source,
int index0,
int index1) |
|
ListDataListener[] | getListDataListeners() | Returns an array of all the list data listeners registered on this |
<T extends EventListener> | getListeners(Class<T> listenerType) | Returns an array of all the objects currently registered as |
void | removeListDataListener(ListDataListener l) | Removes a listener from the list that's notified each time a change to the data model occurs. |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.swing.ListModel
getElementAt, getSize
Field Detail
listenerList
protected EventListenerList listenerList
The listener list.
Constructor Detail
AbstractListModel
public AbstractListModel()
Method Detail
addListDataListener
public void addListDataListener(ListDataListener l)
Adds a listener to the list that's notified each time a change to the data model occurs.
- Specified by:
-
addListDataListener
in interfaceListModel<E>
- Parameters:
-
l
- theListDataListener
to be added
removeListDataListener
public void removeListDataListener(ListDataListener l)
Removes a listener from the list that's notified each time a change to the data model occurs.
- Specified by:
-
removeListDataListener
in interfaceListModel<E>
- Parameters:
-
l
- theListDataListener
to be removed
getListDataListeners
public ListDataListener[] getListDataListeners()
Returns an array of all the list data listeners registered on this AbstractListModel
.
- Returns:
- all of this model's
ListDataListener
s, or an empty array if no list data listeners are currently registered - Since:
- 1.4
- See Also:
-
addListDataListener(javax.swing.event.ListDataListener)
,removeListDataListener(javax.swing.event.ListDataListener)
fireContentsChanged
protected void fireContentsChanged(Object source, int index0, int index1)
AbstractListModel
subclasses must call this method after one or more elements of the list change. The changed elements are specified by the closed interval index0, index1 -- the endpoints are included. Note that index0 need not be less than or equal to index1.
- Parameters:
-
source
- theListModel
that changed, typically "this" -
index0
- one end of the new interval -
index1
- the other end of the new interval - See Also:
-
EventListenerList
,DefaultListModel
fireIntervalAdded
protected void fireIntervalAdded(Object source, int index0, int index1)
AbstractListModel
subclasses must call this method after one or more elements are added to the model. The new elements are specified by a closed interval index0, index1 -- the enpoints are included. Note that index0 need not be less than or equal to index1.
- Parameters:
-
source
- theListModel
that changed, typically "this" -
index0
- one end of the new interval -
index1
- the other end of the new interval - See Also:
-
EventListenerList
,DefaultListModel
fireIntervalRemoved
protected void fireIntervalRemoved(Object source, int index0, int index1)
AbstractListModel
subclasses must call this method after one or more elements are removed from the model. index0
and index1
are the end points of the interval that's been removed. Note that index0
need not be less than or equal to index1
.
- Parameters:
-
source
- theListModel
that changed, typically "this" -
index0
- one end of the removed interval, includingindex0
-
index1
- the other end of the removed interval, includingindex1
- See Also:
-
EventListenerList
,DefaultListModel
getListeners
public <T extends EventListener> T[] getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered as FooListener
s upon this model. FooListener
s are registered using the addFooListener
method.
You can specify the listenerType
argument with a class literal, such as FooListener.class
. For example, you can query a list model m
for its list data listeners with the following code:
ListDataListener[] ldls = (ListDataListener[])(m.getListeners(ListDataListener.class));If no such listeners exist, this method returns an empty array.
- Type Parameters:
-
T
- the type ofEventListener
class being requested - Parameters:
-
listenerType
- the type of listeners requested; this parameter should specify an interface that descends fromjava.util.EventListener
- Returns:
- an array of all objects registered as
FooListener
s on this model, or an empty array if no such listeners have been added - Throws:
-
ClassCastException
- iflistenerType
doesn't specify a class or interface that implementsjava.util.EventListener
- Since:
- 1.3
- See Also:
getListDataListeners()