InputDescription.h

// -*- C++ -*-
//
// InputDescription.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2019 Leif Lonnblad
//
// ThePEG is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_InputDescription_H
#define ThePEG_InputDescription_H
// This is the declaration of the InputDescription class.
 
#include "ThePEG/Config/ThePEG.h"
#include "ThePEG/Utilities/ClassDescription.h"
 
namespace ThePEG {
 
class InputDescription: public Named {
 
public:
 
  typedef vector<const InputDescription *> DescriptionVector;
 
  ThePEG_DECLARE_POINTERS(PersistentBase,BPtr);
 
public:
 
  InputDescription(string newName, int newVersion) 
    : Named(newName), theDescription(0), theVersion(newVersion) {}
 
  void setDescription(const ClassDescriptionBase * cd) {
    theDescription = cd;
  }
 
  void addBaseClass(const InputDescription * newBase) {
    theBaseClasses.push_back(newBase);
  }
 
  const DescriptionVector & descriptions() const {
    return theBaseClasses;
  }
 
  BPtr create() const {
    if ( theDescription ) return theDescription->create();
    DescriptionVector::const_iterator dit = theBaseClasses.begin();
    while ( dit != theBaseClasses.end() ) {
      BPtr obj = (*dit++)->create();
      if ( obj ) return obj;
    }
    return BPtr();
  }
 
  void input(tBPtr b, PersistentIStream & is) const {
    if ( theDescription ) theDescription->input(b, is, theVersion);
  }
 
private:
 
  DescriptionVector theBaseClasses;
 
  const ClassDescriptionBase * theDescription;
 
  int theVersion;
 
};
 
}
 
#endif /* ThePEG_InputDescription_H */