AthExFatObject_p1 Node1 AthExFatObject_p1 + AthExFatObject_p1() Node2 ElementLink_p1< uint32_t > + m_elementIndex + m_SGKeyHash + ElementLink_p1() Node2->Node1 #m_particleLink Node3 std::string Node3->Node2 +m_contName Node4 std::basic_string< char > Node4->Node3