SG::AtomicConstAccessor< T, ALLOC > Node1 SG::AtomicConstAccessor < T, ALLOC > + AtomicConstAccessor() + AtomicConstAccessor() + AtomicConstAccessor() + operator()() + operator()() + getDataArray() Node2 SG::ConstAccessor< T, AuxAllocator_t< T > > # m_auxid + ConstAccessor() + ConstAccessor() + ConstAccessor() + operator()() + operator()() + withDefault() + withDefault() + getDataArray() + getDataSpan() + isAvailable() + isAvailable() + auxid() # ConstAccessor() # ConstAccessor() Node2->Node1