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
public void addTreeListener(ITreeViewerListener listener) {
	treeListeners.add(listener);
}
/**
 * Adds the given SWT tree listener to the given SWT control.
 *
 * @param control the SWT control
 * @param listener the SWT tree listener
 */
protected abstract void addTreeListener(Control control, TreeListener listener);
/* (non-Javadoc)
 * @see StructuredViewer#associate(Object, Item)
 */
protected void associate(Object element, Item item) {
	Object data = item.getData();
	if (data != null && data != element && equals(data, element)) {
		
		
		
		unmapElement(data, item);
		item.setData(element);
		mapElement(element, item);
	} else {
		
		super.associate(element, item);
	}
}
/**
 * Collapses all nodes of the viewer's tree, starting with the root.
 * This method is equivalent to <code>collapseToLevel(ALL_LEVELS)</code>.