~vbursian/research-assistant/intervers

////////////////////////////////////////////////////////////////////////////////

/*! @file NodeLocation.h   sNodeLocation class.

- Part of RANet - Research Assistant Net Library.

- Copyright(C) 1994-2020, Viktor E. Bursian, St.Petersburg, Russia.

                          VBursian@gmail.com

*///////////////////////////////////////////////////////////////////////////////

#ifndef NodeLocation_H

#define NodeLocation_H

#include "BasicNetClassPredeclarations.hpp"

#include "AttrName.h"

namespace RA {

//------------------------------------------------------------------------------

//ANNOUNCE_ABSTRACT_CLASS(sNodeLocation)

//(predeclared in BasicNetClassPredeclarations.hpp)

//------------------------------------------------------------ sNodeLocation ---

/*! Abstract base class for a reference to the physical storage place of a node.

It also declares (partially) a mechanism for allocation.

@sa sNodeLocation::LocationForAttr

*/

class RANet_EXPORT  sNodeLocation

{

  public:

    virtual                   ~sNodeLocation ()

                                {}

    virtual psNodeLocation    Replica () const =0;

    virtual psNodeLocation    LocationForAttr (rcsAttrName) const =0;

    virtual bool              operator == (pcsNodeLocation) const =0;

  public://fields

    psNet                     Net;

  protected:

    explicit                  sNodeLocation (psNet  net)

                                  :Net(net)

                                {}

  private:

                              sNodeLocation (rcsNodeLocation) {}

    rsNodeLocation            operator = (rcsNodeLocation) {return *this;}

};

//------------------------------------------------------------------------------

} //namespace RA

#endif