Athena::RootNtupleEventContext Node1 Athena::RootNtupleEventContext - m_evtsel - m_collIdx - m_tupleIdx - m_fid + RootNtupleEventContext() + ~RootNtupleEventContext() + files() + identifier() + fileIndex() + setFileIndex() + tupleIndex() + setTupleIndex() + entry() + setFID() + fid() + tree() + setTree() Node2 Context Node2->Node1