class:TreeExpansionListener [NONE]

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:treeExpanded(javax.swing.event.TreeExpansionEvent) [NONE]

treeExpanded

void treeExpanded?(TreeExpansionEvent event)

Called whenever an item in the tree has been expanded.

Parameters:: event - a TreeExpansionEvent containing a TreePath object for the expanded node

method:treeCollapsed(javax.swing.event.TreeExpansionEvent) [NONE]

treeCollapsed

void treeCollapsed?(TreeExpansionEvent event)

Called whenever an item in the tree has been collapsed.

Parameters:: event - a TreeExpansionEvent containing a TreePath object for the collapsed node