JEvtEvaluator.hh

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#ifndef __JEVTEVALUATOR__
#define __JEVTEVALUATOR__
 
#include "JAAnet/JAAnetToolkit.hh"
 
#include "JDAQ/JDAQHeader.hh"
#include "JDAQ/JDAQEvent.hh"
 
/**
 * \author mlincetto
 */
 
namespace JAANET {}
namespace JPP { using namespace JAANET; }
 
namespace JAANET {
 
  /**
   * Auxiliary class to determine value of Evt objects.
   */
  struct JEvtEvaluator {
    /**
     * Default constructor.
     */
    JEvtEvaluator()
    {}
 
 
    /**
     * Get value of event.
     *
     * \param  event          event
     * \return                value
     */
    inline double operator()(const Evt& event) const
    {
      if (!event.mc_trks.empty())
        return event.mc_trks[0].t;
      else
        return 0.0;
    } // ()
  
  }; // struct JEvtEvaluator
  
  /**
   * Function object for evaluation of DAQ objects.
   */
  static const JEvtEvaluator getEvtValue;
  
} // namespace
 
#endif