I believe there is a person who named this pattern or practice and would like to know the correct nomenclature to avoid confusion.
Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. It only takes a minute to sign up.Sign up to join this community
This is commonly referred as Law of Demeter
Here are a few guidelines (as per Wikipedia page):
Some more reading: http://wiki.c2.com/?LawOfDemeter