TTableMap.h

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// @(#)root/table:$Id$
// Author: Valery Fine(fine@bnl.gov)   01/03/2001

/*************************************************************************
 * Copyright (C) 1995-2004, Rene Brun and Fons Rademakers.               *
 * Copyright (C) 2001 [BNL] Brookhaven National Laboratory.              *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/

#ifndef ROOT_TTableMap
#define ROOT_TTableMap

#include "assert.h"
#include <vector>

#ifndef ROOT_TTable
#include "TTable.h"
#endif

//////////////////////////////////////////////////////
//
// Class TTableMap
// Iterator of the table with extra index array
//
//////////////////////////////////////////////////////


class TTableMap : public TObject
#ifndef __CINT__
 , public std::vector<Long_t>
#endif
{
private:
   TTableMap &operator=(const TTableMap &orig); // intentionally not implemented.
protected:
   const TTable  *fTable;         // pointer to the refered TTable

public:

   TTableMap(const TTable *table=0);
   TTableMap(const TTableMap &map) : TObject(map)
#ifndef __CINT__
      , std::vector<Long_t>(map)
#endif
    , fTable(map.fTable) {;}
   virtual ~TTableMap(){;}
   Bool_t  IsValid() const;
   Bool_t  IsFolder() const;
   void Push_back(Long_t next); // workaround for Cint
   const TTable *Table(){return fTable;}

   TTable::iterator Begin();
   TTable::iterator Begin() const;
   TTable::iterator End();
   TTable::iterator End()   const;

   ClassDef(TTableMap,1) // "Map" array for TTable object
};

//___________________________________________________________________________________________________________
inline  Bool_t TTableMap::IsValid() const
{
   // Check whether all "map" values do belong the table
   TTable::iterator i      = Begin();
   TTable::iterator finish = End();
   Int_t totalSize          = fTable->GetNRows();

   for (; i != finish; i++) {
       Long_t th = *i;
       if (  th == -1 || (0 <= th && th < totalSize) ) continue;
       return kFALSE;
   }
   return kTRUE;
}
//___________________________________________________________________________________________________________
inline TTable::iterator TTableMap::Begin()          { std::vector<Long_t>::iterator bMap = this->begin(); return TTable::iterator(*fTable, bMap);}
//___________________________________________________________________________________________________________
inline TTable::iterator TTableMap::Begin()    const { std::vector<Long_t>::const_iterator bMap = this->begin(); return TTable::iterator(*fTable, bMap);}
//___________________________________________________________________________________________________________
inline TTable::iterator TTableMap::End()            { std::vector<Long_t>::iterator eMap = this->end(); return TTable::iterator(*fTable, eMap);}
//___________________________________________________________________________________________________________
inline TTable::iterator TTableMap::End()      const { std::vector<Long_t>::const_iterator eMap = this->end();  return TTable::iterator(*fTable, eMap);}
//___________________________________________________________________________________________________________
inline Bool_t           TTableMap::IsFolder() const { return kTRUE;}
//___________________________________________________________________________________________________________
inline void             TTableMap::Push_back(Long_t next){ push_back(next); } // workaround for Cint


#endif