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JavaTM 2 Platform
Standard Edition

javax.swing.event
Interface TreeWillExpandListener


public interface TreeWillExpandListener
extends EventListener

The listener that's notified when a tree expands or collapses a node.


Method Summary
 void treeWillCollapse(TreeExpansionEvent event)
          Invoked whenever a node in the tree is about to be collapsed.
 void treeWillExpand(TreeExpansionEvent event)
          Invoked whenever a node in the tree is about to be expanded.
 

Method Detail

treeWillExpand

public void treeWillExpand(TreeExpansionEvent event)
                    throws ExpandVetoException
Invoked whenever a node in the tree is about to be expanded.

treeWillCollapse

public void treeWillCollapse(TreeExpansionEvent event)
                      throws ExpandVetoException
Invoked whenever a node in the tree is about to be collapsed.

JavaTM 2 Platform
Standard Edition

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