Athena::StdThinningHdlr< Container > Node1 Athena::StdThinningHdlr < Container > - m_backup - m_container + StdThinningHdlr() + remove() + commit() + rollback() Node2 Athena::IThinningHdlr + ~IThinningHdlr() + remove() + commit() + rollback() + isMapping() Node2->Node1