Interface TreeExpansionListener
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- All Superinterfaces:
EventListener
,FormEventListener
public interface TreeExpansionListener extends FormEventListener
An event listener interface to be implemented by objects that are interested in changes of the expansion state of tree nodes.
Listeners of this type are notified whenever a node of a tree is expanded or collapsed. The single method defined by this interface tells the listener that the expansion state of a node has changed. The
type
property of the provided event object can be inspected to find out whether the node was expanded or collapsed.- Version:
- $Id: TreeExpansionListener.java 205 2012-01-29 18:29:57Z oheger $
- Author:
- Oliver Heger
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
expansionStateChanged(TreeExpansionEvent event)
The expansion state of a node has changed.
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Method Detail
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expansionStateChanged
void expansionStateChanged(TreeExpansionEvent event)
The expansion state of a node has changed. The passed in event object contains all information available. Especially the affected tree control, the type of the event, and the path to the node in question can be queried.- Parameters:
event
- the event
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