This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
There is a fairly well known principle called the Law of Demeter which spells out the best practices for using this kind of multi-level access. In short: don't. If you find yourself using multiple dots in an expression, it's a clue that the code you're writing belongs in some other class.