PoolMapElement Node1 PoolMapElement - m_count - m_errcode + PoolMapElement() + PoolMapElement() + inccount() + setErrorBit() + setlfn() + setpfn() + count() + errcode() + lfn() + pfn() + foldertag() + foldertag() + addfoldertag() Node2 std::string Node2->Node1 -m_lfn -m_pfn Node4 std::vector< std::string > Node2->Node4 +elements Node3 std::basic_string< char > Node3->Node2 Node4->Node1 -m_folders