G4VModelFactory.hh

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// $Id$
//
// Jane Tinslay, John Allison, Joseph Perl October 2005
//
// Class Description:
// Abstract base class for model factories. Derived classes
// must implement the Create method, creating a new model
// and associated messengers.
// Class Description - End:

#ifndef G4VMODELFACTORY
#define G4VMODELFACTORY

#include "G4String.hh"
#include <iostream>
#include <utility>
#include <vector>

class G4UImessenger;

template <class T>
class G4VModelFactory {

public: // With description

  typedef std::vector<G4UImessenger*> Messengers;
  typedef std::pair<T*, Messengers> ModelAndMessengers;
  
  G4VModelFactory(const G4String& name);

  virtual ~G4VModelFactory();

  G4String Name();

  virtual ModelAndMessengers Create(const G4String& placement, const G4String& modelName) = 0;

  void Print(std::ostream& ostr) const;

private:

  G4String fName;

};

template <typename T>
G4VModelFactory<T>::G4VModelFactory(const G4String& name)
  :fName(name) 
{}

template <typename T>
G4VModelFactory<T>::~G4VModelFactory() {}

template <typename T>
G4String 
G4VModelFactory<T>::Name() 
{
  return fName;
}

template <typename T>
void 
G4VModelFactory<T>::Print(std::ostream& ostr) const
{
  ostr<<"  "<<fName<<std::endl; 
} 

#endif