/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/MultiDraw/MultiDraw/FormulaSvc.h

#ifndef MULTI_DRAW_FORMULA_SVC_H
#define MULTI_DRAW_FORMULA_SVC_H

//          Copyright Nils Krumnack 2011.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

// Please feel free to contact me (krumnack@iastate.edu) for bug
// reports, feature suggestions, praise and complaints.





//protect
#include <MultiDraw/Global.h>

#include <EventLoop/Algorithm.h>

class TTree;

namespace MD
{
  std::string dbg (const FormulaSvc& obj, unsigned verbosity = 0);


  void useFormulas (EL::Job& job);


  FormulaSvc *formulas (EL::Worker *worker);



  class FormulaSvc : public EL::Algorithm
  {
    //
    // public interface
    //

  public:
    static const std::string name;


  public:
    void testInvariant () const;


  public:
    FormulaSvc ();


  public:
    ~FormulaSvc ();


  public:
    const Formula *addForm (const std::string& formula);



    //
    // methods inherited from EL::Algorithm
    //

  private:
    virtual const char *GetName () const;


  private:
    virtual EL::StatusCode changeInput (bool firstFile);


  private:
    virtual EL::StatusCode execute ();



    //
    // private interface
    //

  private:
    TTree *m_tree; 

  private:
    std::vector<Formula*> m_vars; 

    ClassDef (FormulaSvc, 1);
  };
}

#endif

---