/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/Geometry/CommonDetUnit/interface/TrackingGeometry.h

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#ifndef TrackingGeometry_h
#define TrackingGeometry_h

#include "DataFormats/DetId/interface/DetId.h"
#include <vector>
// #include <map>
#include <ext/hash_map>

class GeomDetType;
class GeomDetUnit;
class GeomDet;

class TrackingGeometry
{
public:
  typedef std::vector<GeomDetType*>          DetTypeContainer;
  typedef std::vector<GeomDet*>              DetContainer;
  typedef std::vector<GeomDetUnit*>          DetUnitContainer;
  typedef std::vector<DetId>                 DetIdContainer;
  //  typedef std::map<DetId,GeomDetUnit*>       mapIdToDetUnit;
  // typedef std::map<DetId,GeomDet*>           mapIdToDet;
  typedef  __gnu_cxx::hash_map< unsigned int, GeomDetUnit*> mapIdToDetUnit;
  typedef  __gnu_cxx::hash_map< unsigned int, GeomDet*>     mapIdToDet;

  // Default constructor
  //  virtual TrackingGeometry() {}
  
  virtual ~TrackingGeometry() {}
  
  virtual const DetTypeContainer&  detTypes()         const = 0;

  virtual const DetUnitContainer&  detUnits()         const = 0;

  virtual const DetContainer&      dets()             const = 0;

  virtual const DetIdContainer&    detUnitIds()       const = 0;

  virtual const DetIdContainer&    detIds()           const = 0;

  virtual const GeomDetUnit*       idToDetUnit(DetId) const = 0;

  virtual const GeomDet*           idToDet(DetId)     const = 0; 

};

#endif