Interface TreeExpansionListener
- All Superinterfaces:
EventListener
- All Known Implementing Classes:
-
BasicTreeUI.TreeExpansionHandler
,JTree.AccessibleJTree
public interface TreeExpansionListener extends EventListener
The listener that's notified when a tree expands or collapses a node. For further documentation and examples see How to Write a Tree Expansion Listener, a section in The Java Tutorial.
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | treeCollapsed(TreeExpansionEvent event) | Called whenever an item in the tree has been collapsed. |
void | treeExpanded(TreeExpansionEvent event) | Called whenever an item in the tree has been expanded. |
Method Detail
treeExpanded
void treeExpanded(TreeExpansionEvent event)
Called whenever an item in the tree has been expanded.
- Parameters:
-
event
- aTreeExpansionEvent
containing aTreePath
object for the expanded node
treeCollapsed
void treeCollapsed(TreeExpansionEvent event)
Called whenever an item in the tree has been collapsed.
- Parameters:
-
event
- aTreeExpansionEvent
containing aTreePath
object for the collapsed node