| |
org.eclipse.core.databinding.observable.list
Class ListDiffVisitor
java.lang.Object
org.eclipse.core.databinding.observable.list.ListDiffVisitor
-
public abstract class ListDiffVisitor
- extends
Object
A visitor for processing differences in a ListDiff.
-
Since:
- 1.1
-
See Also:
-
ListDiff.accept(ListDiffVisitor)
|
Method Summary
|
abstract void
|
handleAdd
(int index,
Object element)
Notifies the visitor that element was added to the list at
position index. |
void
|
handleMove
(int oldIndex,
int newIndex,
Object element)
Notifies the visitor that element was moved in the list
from position oldIndex to position newIndex. |
abstract void
|
handleRemove
(int index,
Object element)
Notifies the visitor that element was removed from the
list at position index. |
void
|
handleReplace
(int index,
Object oldElement,
Object newElement)
Notifies the visitor that oldElement, located at position
index in the list, was replaced by newElement. |
|
Methods inherited from class java.lang.
Object
|
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
|
ListDiffVisitor
public ListDiffVisitor()
handleAdd
public abstract void handleAdd(int index,
Object element)
- Notifies the visitor that
element was added to the list at
position index.
-
-
Parameters:
-
index - the index where the element was added -
element - the element that was added
handleRemove
public abstract void handleRemove(int index,
Object element)
- Notifies the visitor that
element was removed from the
list at position index.
-
-
Parameters:
-
index - the index where the element was removed -
element - the element that was removed
handleMove
public void handleMove(int oldIndex,
int newIndex,
Object element)
- Notifies the visitor that
element was moved in the list
from position oldIndex to position newIndex.
The default implementation of this method calls
handleRemove(int, Object) with the old position, then
handleAdd(int, Object) with the new position. Clients which are
interested in recognizing "moves" in a list (i.e. calls to
IObservableList.move(int, int)) should override this method.
-
-
Parameters:
-
oldIndex - the index that the element was moved from. -
newIndex - the index that the element was moved to. -
element - the element that was moved -
See Also:
-
IObservableList.move(int, int)
handleReplace
public void handleReplace(int index,
Object oldElement,
Object newElement)
- Notifies the visitor that
oldElement, located at position
index in the list, was replaced by newElement.
The default implementation of this method calls
handleRemove(int, Object) with the old element, then
handleAdd(int, Object) with the new element. Clients which are
interested in recognizing "replaces" in a list (i.e. calls to
List.set(int, Object)
) should override this method.
-
-
Parameters:
-
index - the index where the element was replaced. -
oldElement - the element being replaced. -
newElement - the element that replaced oldElement. -
See Also:
-
List.set(int, Object)
Guidelines for using Eclipse APIs.
Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.
|
|
