Package org.eclipse.swt.events

Class TreeAdapter

java.lang.Object

org.eclipse.swt.events.TreeAdapter

All Implemented Interfaces:

EventListener, TreeListener, SWTEventListener

public abstract class TreeAdapter
extends Object
implements TreeListener

This adapter class provides default implementations for the methods described by the TreeListener interface.

Classes that wish to deal with TreeEvents can extend this class and override only the methods which they are interested in.

An alternative to this class are the static helper methods TreeListener.treeCollapsedAdapter(java.util.function.Consumer) and TreeListener.treeExpandedAdapter(java.util.function.Consumer), which accept a lambda expression or a method reference that implements the event consumer.

See Also:

• TreeListener
• TreeEvent
• Sample code and further information

Constructor Summary

Constructors

Constructor	Description
TreeAdapter()

Method Summary

Modifier and Type	Method	Description
void	treeCollapsed(TreeEvent e)	Sent when a tree branch is collapsed.
void	treeExpanded(TreeEvent e)	Sent when a tree branch is expanded.

Methods inherited from class java.lang.Object

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

Constructor Details

TreeAdapter

public TreeAdapter()

Method Details

treeCollapsed

public void treeCollapsed(TreeEvent e)

Sent when a tree branch is collapsed. The default behavior is to do nothing.

Specified by:

treeCollapsed in interface TreeListener

Parameters:

e - an event containing information about the tree operation

treeExpanded

public void treeExpanded(TreeEvent e)

Sent when a tree branch is expanded. The default behavior is to do nothing.

Specified by:

treeExpanded in interface TreeListener

Parameters:

e - an event containing information about the tree operation