public class EventModelDBContentProvider extends
    ObservableListTreeContentProvider
{
	public EventModelDBContentProvider()
	{
		//super( getObservableListFactory(), getTreeStructureAdvisor() );
		super( getObservableListFactory(), null );
	}

	// This factory returns an observable list of children for the given parent.
	private static IObservableFactory getObservableListFactory()
	{
		return new IObservableFactory()
		{
			public IObservable createObservable(Object parent)
			{
				if( parent instanceof Controller )
				{
					IObservableList list = BeanProperties.list("models").observe( parent );
					return list;
				}
                          return null;
                      }
... etc.

public EventModelDBLabelProvider( IObservableSet knownElements )
	{
		// We pass an array of properties so that appropriate listeners
		// are added automatically to each element displayed in the viewer.
		super(Properties.observeEach(knownElements, BeanProperties
				.values(new String[] {  "models", "designators",.... /*All the things I want to listen/react to*/ })));
	}