RDBVersionAccessor Node1 RDBVersionAccessor - m_session - m_isChildLeaf - m_msgStream + RDBVersionAccessor() + getChildTagData() + getNodeName() + getTagName() + getTagID() + isLeaf() - RDBVersionAccessor() - attribute2String() Node2 std::string Node2->Node1 -m_tagName -m_parentNode -m_tagID -m_parentTag -m_childNode Node3 std::basic_string< char > Node3->Node2