Bug 126839 [DataBinding] IObservable refactoring
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/provisional/databinding/TreeModelDescription.java
private HashMap childrenProperties = new HashMap();
	
	private Class[] types = new Class[0];
	
	private Object root;
			
	
	/**
	 * @param root element/s or for the tree.  
	 */