action.h

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#ifndef ACTION_INCLUDED
#define ACTION_INCLUDED
 
#include "Field/field_G.h"
#include "Tools/randomNumbers.h"
#include "Parameters/parameters.h"
#include "IO/bridgeIO.h"
 
#ifdef USE_FACTORY
#include "Tools/factory.h"
#endif
 
 
 
class Action
{
 public:
 
  Action() {}
 
  virtual ~Action() {}
 
 private:
  // non-copyable
  Action(const Action&);
  Action& operator=(const Action&);
 
 public:
  virtual void set_parameters(const Parameters& param) = 0;
 
  virtual void get_parameters(Parameters& param) const = 0;
 
  virtual void set_config(Field *U) = 0;
 
  virtual double langevin(RandomNumbers *) = 0;
 
  virtual double calcH() = 0;
 
  //virtual const Field force() = 0;
  virtual void force(Field&) = 0;
 
  virtual void force(Field& v, Field& U)
  {
    set_config(&U);
    force(v);
  }
 
#ifdef USE_FACTORY
 public:
  typedef Action *(*ProductCreator)();
  typedef Action *(*ProductCreator_params)(const Parameters&);
 
  typedef FactoryTemplate<Action, ProductCreator>          Factory;
  typedef FactoryTemplate<Action, ProductCreator_params>   Factory_params;
 
  static Action *New(const IdentifierType& subtype)
  {
    ProductCreator p = Factory::Find(subtype);
    return p ? (*p)() : 0;
  }
 
  static Action *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