MeasurementDetWithData.h

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#ifndef MeasurementDetWithData_H
#define MeasurementDetWithData_H

#include "TrackingTools/MeasurementDet/interface/MeasurementDet.h" 

class MeasurementDetWithData {
    public:
        MeasurementDetWithData() :
            det_(0), data_(0) {}

        MeasurementDetWithData(const MeasurementDet &det, const MeasurementTrackerEvent &data) :
            det_(&det), data_(&data) {}

        bool isValid() const { return det_ != 0; }
        bool isNull() const { return det_ == 0; }

        const MeasurementDet & mdet() const { return *det_; }

        // duplicate interface of MeasurementDet
        typedef MeasurementDet::TempMeasurements TempMeasurements;
        typedef MeasurementDet::RecHitContainer  RecHitContainer;

        RecHitContainer recHits( const TrajectoryStateOnSurface &tsos ) const { 
            return mdet().recHits(tsos, data()); 
        }

        // use a MeasurementEstimator to filter the hits (same algo as below..)
        // default as above 
        bool recHits( const TrajectoryStateOnSurface& stateOnThisDet, const MeasurementEstimator & me, RecHitContainer & result, std::vector<float> & out) const {
            return mdet().recHits(stateOnThisDet, me, data(), result, out);
        }

        std::vector<TrajectoryMeasurement> 
        fastMeasurements( const TrajectoryStateOnSurface& stateOnThisDet, 
                  const TrajectoryStateOnSurface& tsos2, 
                          const Propagator& prop, 
                          const MeasurementEstimator& est) const {
            return mdet().fastMeasurements(stateOnThisDet, tsos2, prop, est, data());
        }

        // return false if missing (if inactive is true and one hit)
        bool measurements( const TrajectoryStateOnSurface& stateOnThisDet,
                           const MeasurementEstimator& est,
                           TempMeasurements & result) const {
            return mdet().measurements(stateOnThisDet, est, data(), result);
        }


        // forward methods which don't actually depend on data
        const GeomDet& fastGeomDet() const { return mdet().fastGeomDet(); }
        const GeomDet& geomDet() const { return mdet().geomDet(); } 
        const Surface& surface() const { return  mdet().geomDet().surface(); }
        const Surface::PositionType& position() const { return mdet().geomDet().position(); }

        // these instead potentially depend on the data
        bool isActive() const { return mdet().isActive(data()); }
        bool hasBadComponents(const TrajectoryStateOnSurface &tsos) const { return mdet().hasBadComponents(tsos, data()); }

    private:
        const MeasurementTrackerEvent & data() const { return *data_; }
        const MeasurementDet * det_;
        const MeasurementTrackerEvent * data_;
};

#endif