IRDBQuery Node1 IRDBQuery # m_attrList + IRDBQuery() + ~IRDBQuery() + execute() + size() + finalize() + setOrder() + addToOutput() + next() + data() + data() + isNull() + isNull() Node2 RDBQuery - m_dblock - m_query - m_queryCount - m_accessSvc - m_nodeName - m_tagId - m_connName - m_size - m_fields - m_cursor - m_orderField - m_executed + RDBQuery() + ~RDBQuery() + execute() + size() + finalize() + setOrder() + addToOutput() + next() - RDBQuery() Node1->Node2