Class BasicTreeUI.TreeExpansionHandler

All Implemented Interfaces:
EventListener, TreeExpansionListener
Enclosing class:
BasicTreeUI
public class BasicTreeUI.TreeExpansionHandler
extends Object
implements TreeExpansionListener

Updates the TreeState in response to nodes expanding/collapsing.

Constructors

Constructor Description
TreeExpansionHandler()

Methods

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.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

TreeExpansionHandler

public TreeExpansionHandler()

Methods

treeExpanded

public void treeExpanded(TreeExpansionEvent event)

Called whenever an item in the tree has been expanded.

Specified by:
treeExpanded in interface TreeExpansionListener
Parameters:
event - a TreeExpansionEvent containing a TreePath object for the expanded node

treeCollapsed

public void treeCollapsed(TreeExpansionEvent event)

Called whenever an item in the tree has been collapsed.

Specified by:
treeCollapsed in interface TreeExpansionListener
Parameters:
event - a TreeExpansionEvent containing a TreePath object for the collapsed node

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https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/javax/swing/plaf/basic/BasicTreeUI.TreeExpansionHandler.html