xAOD::JetAttributeAccessor::ObjectAccessorWrapper< TYPE > Node1 xAOD::JetAttributeAccessor ::ObjectAccessorWrapper < TYPE > # m_a + ObjectAccessorWrapper() + setAttribute() + getAttribute() + getAttribute() + isAvailable() + operator()() Node2 xAOD::JetAttributeAccessor ::Named # m_name + Named() + name() Node2->Node1