JetVar::VariableAtt< std::vector< T > >::VectorWrapperT Node1 JetVar::VariableAtt < std::vector< T > > ::VectorWrapperT + VectorWrapperT() + at() + size() Node2 JetVar::VectorValue ::VectorWrapper + ~VectorWrapper() + at() + size() Node2->Node1 Node3 std::vector< T > Node3->Node1 +m_v Node4 T Node4->Node3 +elements