SessionTool Node1 SessionTool - m_catalog - m_ageLimit - m_transactionType + SessionTool() + ~SessionTool() + SessionTool() + operator=() + setupFC() + readObject() + registerForWrite() + registry() + disconnectAll() + start() and 9 more... Node2 ISessionTool   + setupFC() + disconnectAll() + start() + commit() + commitAndHold() + openMode() + databaseHandle() + readObject() + registerForWrite() + microSessionManager() + getStorageSvc() + closeSession() + ~ISessionTool() Node2->Node1 Node3 AthAlgTool   + AthAlgTool() + ~AthAlgTool() - AthAlgTool() - AthAlgTool() - operator=() Node3->Node2 Node4 AthCommonDataStore < AthCommonMsg< AlgTool > > - m_varHandleArraysDeclared + AthCommonDataStore() + evtStore() + detStore() + sysInitialize() + sysStart() + inputHandles() + outputHandles() + declareProperty() + updateVHKA() # renounceArray() # renounce() # extraDeps_update_handler() - declareGaudiProperty() Node4->Node3 Node10 std::unique_ptr< pool ::DatabaseRegistry >   + operator->() Node10->Node1 -m_registry Node11 pool::DatabaseRegistry   + DatabaseRegistry() + ~DatabaseRegistry() + registerDatabaseHandler() + registerDatabaseHandler() + deregisterDatabaseHandler() + lookupByFID() + lookupByPFN() + lookupByLFN() + begin() + begin() + end() + end() + size() - registerDbHandler() Node11->Node10 +ptr Node12 std::set< pool::Database Handler * >     Node12->Node11 -m_databases Node63 std::map< std::string, pool::DatabaseHandler * >     Node63->Node11 -m_fidToDb -m_lfnToDb -m_pfnToDb Node65 std::map< long, std ::unique_ptr< pool:: MicroSessionManager > > + keys   Node65->Node1 -m_technologies Node66 std::unique_ptr< pool ::MicroSessionManager >   + operator->() Node66->Node65 +elements