ActsTrk::JSONDeviceDetectorDescriptionProviderSvc Node1 ActsTrk::JSONDeviceDetector DescriptionProviderSvc - m_detStore - m_hostMR - m_deviceMR - m_copy - m_geometryFile - m_digitizationFile - m_conditionsFile - m_mapFile - m_deviceDesignObjectName - m_deviceCondObjectName - m_hostDesignObjectName - m_hostCondObjectName - m_detrayToAthena - m_athenaToDetray + initialize() + detrayToAthenaMap() + athenaToDetrayMap() - loadIdMaps() - buildFromFile() Node2 extends< AthService, ActsTrk::IDeviceDetectorDescription ProviderSvc >     Node2->Node1