Reconstruction/MdcPatRec/TrkBase/TrkBase-00-01-12/TrkBase/TrkHitOnTrkUpdater.h

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#ifndef TRKHITONTRKUPDATER_H
#define TRKHITONTRKUPDATER_H
 
//--------------------------------------------------------------------------
//
// Environment:
//      This software was developed for the BaBar collaboration.  If you
//      use all or part of it, please give an appropriate acknowledgement.
//
// Copyright Information:
//      Copyright (C) 2000      University of California, San Diego
//
//------------------------------------------------------------------------
 
#include "TrkBase/TrkHitOnTrk.h"
#include "TrkBase/TrkErrCode.h"
 
/**
 *  TrkHitOnTrkUpdater. 
 *     this class regulates access to some protected functions
 *     in TrkHitOnTrk: only classes inheriting from this one can 
 *     modify the status of a TrkHitOnTrk
 *
 *
 *  This software was developed for the BaBar collaboration.  If you
 *  use all or part of it, please give an appropriate acknowledgement.
 *
 *  Copyright (C) 2000 University of California, San Diego
 *
 *  @version $Id: TrkHitOnTrkUpdater.h,v 1.1.1.1 2005/04/21 06:01:42 zhangy Exp $
 *
 *  @author (Gerhard Raven)           (based on an idea of Steve Schaffner)
 */
#include "TrkBase/TrkFunctors.h"
 
class TrkHitOnTrkUpdater
{
public:
  virtual ~TrkHitOnTrkUpdater() = 0;
protected:
  TrkErrCode updateMeasurement(TrkHitOnTrk &hot, const TrkDifTraj* traj=0, bool maintainAmbiguity=false) const
    { return hot.updateMeasurement(traj,maintainAmbiguity);}
// allow subclasses (essentially TrkReps) to set hot activity directly
  void setActivity(TrkHitOnTrk& hot,bool active) const {
    hot.setActive(active); }
// allow changing the parent to which a hot is assigned
  void setParent(TrkHitOnTrk& hot,TrkRep* parent) const {
    hot._parentRep = parent;
  }
 
  TrkBase::Functors::updateMeasurement updateMeasurement( const TrkDifTraj* traj=0, bool maintainAmbiguity=false) const 
  { return TrkBase::Functors::updateMeasurement(traj,maintainAmbiguity); }
  TrkBase::Functors::setParent setParent(TrkRep* parent) const 
  { return TrkBase::Functors::setParent(parent); }
  TrkBase::Functors::setActive setActive(bool active) const 
  { return TrkBase::Functors::setActive(active); }
 
 
};
 
#endif