SkipEventIdxSvc Node1 SkipEventIdxSvc - m_initial_skip_events - m_events - m_callbacks - m_started + SkipEventIdxSvc() + ~SkipEventIdxSvc() + initialize() + start() + registerCallback() + handle() Node2 extends< AthService, IIncidentListener, ISkipEventIdxSvc > Node2->Node1