TreeReader Node1 TreeReader - m_currentEntry - m_entries - m_isChain - m_currentTree + TreeReader() + ~TreeReader() + TreeReader() + SetTree() + GetVariable() + GetEntry() + GetEntries() + GetTree() + Restart() Node2 TTree Node2->Node1 -m_tree Node3 std::map< std::string, TTreeFormula * > + elements Node3->Node1 -m_formulae Node4 std::string Node4->Node3 +keys Node5 std::basic_string< char > Node5->Node4