Defaults.h

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//
//
// File: hitfit/Defaults.h
// Purpose: Define an interface for getting parameter settings.
// Created: Nov, 2000, sss.
//
// This defines a very simple abstract interface for retrieving settings
// for named parameters.  Using this ensures that the hitfit code doesn't
// have to depend on something like rcp.  There is a lightweight concrete
// implementation of this interface, Defaults_Text, which can be used
// for standalone applications.  If this code gets used with the D0 framework,
// a Defaults_RCP can be provided too.
//
// CMSSW File      : interface/Defaults.h
// Original Author : Scott Stuart Snyder <snyder@bnl.gov> for D0
// Imported to CMSSW by Haryo Sumowidagdo <Suharyo.Sumowidagdo@cern.ch>
//
 
#ifndef HITFIT_DEFAULTS_H
#define HITFIT_DEFAULTS_H
 
#include <string>
 
namespace hitfit {
 
  class Defaults
  //
  // Purpose: Define an interface for getting parameter settings.
  //
  {
  public:
    // Constructor, destructor.
 
    Defaults() {}
 
    virtual ~Defaults() {}
 
    // Test to see if parameter NAME exists.
    virtual bool exists(std::string name) const = 0;
 
    // Get the value of NAME as an integer.
    virtual int get_int(std::string name) const = 0;
 
    // Get the value of NAME as a boolean.
    virtual bool get_bool(std::string name) const = 0;
 
    // Get the value of NAME as a float.
    virtual double get_float(std::string name) const = 0;
 
    // Get the value of NAME as a string.
    virtual std::string get_string(std::string name) const = 0;
  };
 
}  // namespace hitfit
 
#endif  // not HITFIT_DEFAULTS_H