projection.h

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#ifndef PROJECTION_INCLUDED
#define PROJECTION_INCLUDED
 
#include "Field/field_G.h"
#include "Parameters/parameters.h"
 
#ifdef USE_FACTORY
#include "Tools/factory.h"
#endif
 
 
class Projection
{
 public:
  Projection() {}
  virtual ~Projection() {}
 
 private:
  // non-copyable
  Projection(const Projection&);
  Projection& operator=(const Projection&);
 
 public:
  virtual void project(Field_G& v,
                       const double alpha,
                       const Field_G& C, const Field_G& U) = 0;
 
  virtual void force_recursive(Field_G& Xi, Field_G& iTheta,
                               const double alpha, const Field_G& Sigmap,
                               const Field_G& C, const Field_G& U) = 0;
 
  virtual void set_parameters(const Parameters& param) = 0;
 
  virtual void get_parameters(Parameters& param) const = 0;
 
 
#ifdef USE_FACTORY
 public:
  typedef Projection *(*ProductCreator)();
  typedef Projection *(*ProductCreator_params)(const Parameters&);
 
  typedef FactoryTemplate<Projection, ProductCreator>          Factory;
  typedef FactoryTemplate<Projection, ProductCreator_params>   Factory_params;
 
  static Projection *New(const IdentifierType& subtype)
  {
    ProductCreator p = Factory::Find(subtype);
    return p ? (*p)() : 0;
  }
 
  static Projection *New(const IdentifierType& subtype, const Parameters& params)
  {
    ProductCreator_params p = Factory_params::Find(subtype);
    return p ? (*p)(params) : 0;
  }
 
#ifdef USE_FACTORY_AUTOREGISTER
#else
  static bool init_factory();
#endif
#endif
};
#endif