G4UA::HitWrapper Node1 G4UA::HitWrapper + HitWrapper() + EndOfEventAction() Node2 AthMessaging - m_msg_tls - ATLAS_THREAD_SAFE + AthMessaging() + AthMessaging() + ~AthMessaging() + msgLvl() + msg() + msg() + setLevel() - AthMessaging() - AthMessaging() - operator=() - initMessaging() Node2->Node1 Node3 std::atomic< IMessageSvc * > + ptr Node3->Node2 -m_imsg Node4 std::string Node4->Node2 -m_nm Node5 std::basic_string< char > Node5->Node4 Node6 std::atomic< MSG::Level > + ptr Node6->Node2 -m_lvl Node7 G4UserEventAction Node7->Node1 Node8 G4UA::HitWrapper::Config + time Node8->Node1 -m_config Node9 ServiceHandle< StoreGate Svc > Node9->Node1 -m_evtStore -m_detStore