ca.odell.glazedlists.swing
Class EventListModel<E>
java.lang.Object
ca.odell.glazedlists.swing.EventListModel<E>
- EventListener, ListEventListener<E>, ListModel
public class EventListModel<E>
extends java.lang.Object
An EventListModel adapts a EventList to the ListModel interface making it
appropriate for use with a
JList
. Each element of the list
corresponds to an element in the
ListModel
.
The EventListModel class is
not thread-safe. Unless otherwise
noted, all methods are only safe to be called from the event dispatch thread.
To do this programmatically, use
SwingUtilities.invokeAndWait(Runnable)
.
int | changeSizeRepaintAllThreshhold - whenever a list change covers greater than this many rows, redraw the whole thing
|
protected ca.odell.glazedlists.swing.MutableListDataEvent | listDataEvent - recycle the list data event to prevent unnecessary object creation
|
EventListModel(EventList source) - Creates a new widget that renders the specified list.
|
void | addListDataListener(ListDataListener listDataListener) - Registers the specified ListDataListener to receive updates whenever
this list changes.
|
void | dispose() - Releases the resources consumed by this
EventListModel so that it
may eventually be garbage collected.
|
protected void | fireListDataEvent(ListDataEvent listDataEvent) - Notifies all ListDataListeners about one block of changes in the list.
|
Object | getElementAt(int index) - Retrieves the value at the specified location from the table.
|
int | getSize() - Gets the size of the list.
|
void | listChanged(ListEvent listChanges) - For implementing the ListEventListener interface.
|
void | removeListDataListener(ListDataListener listDataListener) - Deregisters the specified ListDataListener from receiving updates
whenever this list changes.
|
changeSizeRepaintAllThreshhold
public int changeSizeRepaintAllThreshhold
whenever a list change covers greater than this many rows, redraw the whole thing
listDataEvent
protected ca.odell.glazedlists.swing.MutableListDataEvent listDataEvent
recycle the list data event to prevent unnecessary object creation
EventListModel
public EventListModel(EventList source)
Creates a new widget that renders the specified list.
addListDataListener
public void addListDataListener(ListDataListener listDataListener)
Registers the specified ListDataListener to receive updates whenever
this list changes.
The specified ListDataListener must
not save a
reference to the ListDataEvent beyond the end of the notification
method. This is because the ListDataEvent is re-used to increase
the performance of this implementation.
dispose
public void dispose()
fireListDataEvent
protected void fireListDataEvent(ListDataEvent listDataEvent)
Notifies all ListDataListeners about one block of changes in the list.
getElementAt
public Object getElementAt(int index)
Retrieves the value at the specified location from the table.
Before every get, we need to validate the row because there may be an
update waiting in the event queue. For example, it is possible that
the source list has been updated by a database thread. Such a change
may have been sent as notification, but after this request in the
event queue. In the case where a row is no longer available, null is
returned. The value returned is insignificant in this case because the
Event queue will very shortly be repainting (or removing) the row
anyway.
getSize
public int getSize()
Gets the size of the list.
listChanged
public void listChanged(ListEvent listChanges)
For implementing the ListEventListener interface. This sends changes
to the table which can repaint the table cells. Because this class uses
a EventThreadProxy, it is guaranteed that all natural
calls to this method use the Swing thread.
This always sends discrete changes for the complete size of the list.
It may be more efficient to implement a threshhold where a large list
of changes are grouped together as a single change. This is how the
ListTable accepts large change events.
- listChanged in interface ListEventListener<E>
removeListDataListener
public void removeListDataListener(ListDataListener listDataListener)
Deregisters the specified ListDataListener from receiving updates
whenever this list changes.
Glazed Lists, Copyright © 2003-2006 publicobject.com, O'Dell Engineering.
Documentation build by buildd at 2008-01-04 14:38