CMMCPHits_p1 Node1 CMMCPHits_p1 + m_crate + m_dataID + m_peak + CMMCPHits_p1() Node2 std::vector< int > + elements Node2->Node1 +m_error0 +m_error1 Node3 std::vector< unsigned int > + elements Node3->Node1 +m_hits0 +m_hits1