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//
// $Id: G4PersistentHitMan.hh,v 1.7 2001/07/11 10:02:14 gunter Exp $
// GEANT4 tag $Name: geant4-04-01 $
//

// Class Description:
//
// A Class responsible for registring HitsCollection
// during event tracking.
//
// The class is `singleton', with access via
//   G4PersistentHitMan::GetPersistentHitMan.
//
// This class itself is not persistent-capable. 
//

// Member functions:
// =================
//  static G4PersistentHitMan* GetPersistentHitMan();
//  static G4PersistentHitMan* get_PersistentHitManIfExist();
//   Return ptr to singleton instance of the class.
//
//  G4PersistentHitMan();
//  ~G4PersistentHitMan();
//
// Member data:
// ============
// static G4PersistentHitMan* fPersistentHitMan
//   Ptr to the unique instance of class
//
// History:
// 99.11.16 Y.Morita  Initial version

#ifndef G4PersistentHitMan_DDL
#define G4PersistentHitMan_DDL 1

#include "HepODBMS/odbms/HepODBMS.h"

#include "G4VPersistentSubMan.hh"
#include "G4VPersistentSubDbMan.hh"

#include "G4PHCofThisEvent.hh"

class G4PersistentHitMan 
 : public G4VPersistentSubMan, public G4VPersistentSubDbMan
{
  public: // with description
      static G4PersistentHitMan* GetPersistentHitMan();
      // returns a pointer to singleton instance of this class.
      static G4PersistentHitMan* get_PersistentHitManIfExist();
      // returns a pointer to singleton instance of this class.

  public:
      G4PersistentHitMan();
      ~G4PersistentHitMan();

  private: 
      static G4PersistentHitMan * f_PersistentHitMan;
      HepRef(G4PHCofThisEvent) f_CurrentPHCofThisEvent;

  public: // with description
      inline void SetCurrentPHCofThisEvent( HepRef(G4PHCofThisEvent) aPHC)
      { f_CurrentPHCofThisEvent = aPHC; };
      // sets a smart pointer of the collection of hits collections
      // of this event.  This method should be invoked by user
      // sensitive detector only once per event.
      inline HepRef(G4PHCofThisEvent) GetCurrentPHCofThisEvent()
      { return f_CurrentPHCofThisEvent; };
      // returns a smart pointer of the collection of hits collections
      // of this event.

};

#endif