Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Interface TreeWillExpandListener

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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.