CoraCoolObject Node1 CoraCoolObject - m_chan - m_spec + CoraCoolObject() + CoraCoolObject() + ~CoraCoolObject() + since() + until() + channelId() + begin() + end() + size() + add() Node2 std::vector< coral ::AttributeList > Node2->Node1 -m_payload Node3 AttributeList Node3->Node2 +elements Node4 ValidityKey Node4->Node1 -m_since -m_until