/*****************************************************************************
 * Project: RooFit                                                           *
 * Package: RooFitCore                                                       *
 *    File: $Id: RooNameReg.h,v 1.3 2007/05/11 09:11:30 verkerke Exp $
 * Authors:                                                                  *
 *   WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu       *
 *   DK, David Kirkby,    UC Irvine,         dkirkby@uci.edu                 *
 *                                                                           *
 * Copyright (c) 2000-2005, Regents of the University of California          *
 *                          and Stanford University. All rights reserved.    *
 *                                                                           *
 * Redistribution and use in source and binary forms,                        *
 * with or without modification, are permitted according to the terms        *
 * listed in LICENSE (http://roofit.sourceforge.net/license.txt)             *
 *****************************************************************************/
#ifndef ROO_NAME_REG
#define ROO_NAME_REG

#include "TNamed.h"
#include "RooHashTable.h"
#include "RooLinkedList.h"

class RooNameReg : public TNamed {
public:

  static RooNameReg& instance() ;
  virtual ~RooNameReg();
  const TNamed* constPtr(const char* stringPtr) ;
  const char* constStr(const TNamed* namePtr) ; 
  static const TNamed* ptr(const char* stringPtr) ;
  static const char* str(const TNamed* ptr) ;
  static const TNamed* known(const char* stringPtr) ;

  static void cleanup() ;

  enum {
    kRenamedArg = BIT(19)    // TNamed flag to indicate that some RooAbsArg has been renamed (flag set in new name)
  };

protected:

  static RooNameReg* _instance ;

  RooNameReg(Int_t hashSize = 31) ;
  RooNameReg(const RooNameReg& other) ;

  RooHashTable _htable ; // Repository of registered names
  RooLinkedList _list ; // 

  ClassDef(RooNameReg,1) // String name registry
};

#endif