DetDescrDBEnvelopeSvc Node1 DetDescrDBEnvelopeSvc - m_dbAccess - m_geoModelSvc - m_atlasNode - m_atlasVersionTag - m_node - m_rz - m_rposz - m_allowFallback - m_doFallback - m_fallbackR - m_fallbackZ + DetDescrDBEnvelopeSvc() + ~DetDescrDBEnvelopeSvc() + initialize() + finalize() + getRZBoundary() + getRPositiveZBoundary() - retrieveRZBoundaryOptional Fallback() - retrieveRZBoundary() - fallbackRZBoundary() - enableFallback() Node2 extends< AthService, IEnvelopeDefSvc > Node2->Node1