cms-sw/cmssw — pull request #1871 by Dr15Jones (2013-12-18 15:07:07+00:00)
Title: Refactored internals of edm::Principal to make future changes easier

edm::Principal is the base class for the classes which deal with Run, Lumi and Event data products. The way we get data will change for the threaded-framework. This refactoring lays the ground work for those changes. No functionality should change from this refactoring.