		ContinueVisiting (TtiVisitor)
pt		Database (TtiObjectVisitor)
	ro	Depth (TtiVisitor)
		IterationStyle (TtiVisitor)
pt		PersistenceLayer (TtiObjectVisitor)
pt		Query (TtiObjectVisitor)
	ro	Visited (TtiVisitor)
		Visited (TtiObjectVisitor)
		VisitedsOwner (TtiVisitor)