CaloClusterMomentContainer_p1 Node1 CaloClusterMomentContainer_p1 + m_nMoments + CaloClusterMomentContainer_p1() Node2 std::vector< CaloCluster MomentContainer_p1::ClusterMoment_p > Node2->Node1 +m_store Node3 CaloClusterMomentContainer _p1::ClusterMoment_p + key + value Node3->Node2 +elements