#ifndef MOLECULAR_GROUP_H
#define MOLECULAR_GROUP_H

#ifndef OBJECT_H
#include "Object.h"
#endif

namespace MM
{
class  Molecule;

class Molecular_group : public Object
{
public:
    virtual int                 molecule_count () const =0;
    virtual Molecule &          molecule (int i) =0;
    virtual const Molecule &    molecule (int i) const =0;
};

}//MM

#endif //MOLECULAR_GROUP_H
