InDet::TRT_TrackExtensionToolCosmics::EventData Node1 InDet::TRT_TrackExtension ToolCosmics::EventData # m_trtcontainer # m_trtcylinder # m_trtdiscA # m_trtdiscC # m_measurement + EventData() + ~EventData() Node2 Trk::EventDataBase < EventData, InDet:: ITRT_TrackExtensionTool ::IEventData > # getPrivateEventData() # throwMismtach() Node2->Node1 Node3 InDet::ITRT_TrackExtension Tool::IEventData + ~IEventData() Node3->Node2