SG::ReadMetaHandle< T > Node1 SG::ReadMetaHandle< T > - m_cont - m_ent - m_hkey + ReadMetaHandle() + ReadMetaHandle() + ~ReadMetaHandle() + retrieve() + retrieve() + operator->() + operator*() + isValid() - initMetaHandle() Node2 std::string Node2->Node1 -m_sid Node3 std::basic_string< char > Node3->Node2