MakeEventStreamInfo Node1 MakeEventStreamInfo - m_dataHeaderKey - m_key - m_eventInfoKey - m_oEventInfoKey - m_filledEvent + MakeEventStreamInfo() + ~MakeEventStreamInfo() + initialize() + postInitialize() + preExecute() + preStream() + postExecute() + preFinalize() + finalize() Node2 extends<::AthAlgTool, IAthenaOutputTool > Node2->Node1 Node3 ServiceHandle< StoreGate Svc > Node3->Node1 -m_eventStore Node4 ServiceHandle< IAthMetaData Svc > Node4->Node1 -m_metaDataSvc