Bug 24024 [Viewers] Error in Javadoc for AbstractTreeViewer::setAutoExpandLevel()
from Javadoc for AbstractTreeViewer::setAutoExpandLevel() : * Sets the auto-expand level. * The value 0 means that the root's children are not visible; * 1 means that the root is expanded so that its children are visible, * but the root's grandchildren are not; and so on. That's off by one. 0 means auto-expand is off. 1 means that roots are not expanded. 2 means that children of the roots are expanded, but not grandchildren; etc. * The value <code>EXPAND_ALL</code> means that all subtrees should be * expanded. The constant should read ALL_LEVELS Note that some other expansion-methods need these comment updates too.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
if (event.item.getData() != null) {
		fireTreeCollapsed(new TreeExpansionEvent(this, event.item.getData()));
	}
}
/**
 * Handles a tree expand event from the SWT widget.
 *
 * @param event the SWT tree event
 */
protected void handleTreeExpand(TreeEvent event) {
	createChildren(event.item);
	if (event.item.getData() != null) {
		fireTreeExpanded(new TreeExpansionEvent(this, event.item.getData()));
	}
}
/* (non-Javadoc)
 * Method declared on Viewer.
 */
protected void hookControl(Control control) {
	super.hookControl(control);
	addTreeListener(control,new TreeListener() {
		public void treeExpanded(TreeEvent event) {
			handleTreeExpand(event);
		}
		public void treeCollapsed(TreeEvent event) {
			handleTreeCollapse(event);
		}
	});
}
/* (non-Javadoc)