#ifndef VEGA_VFileDirectDB
#define VEGA_VFileDirectDB

//*-- Author :    Damir Buskulic   30/04/02

#include <math.h>
#include "FrameL.h"
#include "VVirtualFrameInfoDB.h"

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VFileDirectDB                                                        //
//                                                                      //
// File Info database for simple files                                  //
// Uses the standard Framelib                                           //
// the TOC of a set of frame files is considered as an info database    //
// This allows to treat the same way a small set of frame files         //
// and a set of frame files managed by a metadb or a BKDB               //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

class VFileDirectDB : public VVirtualFrameInfoDB
{
private :
   TString            mFrameFileName;   // Set of frame file names
   FrFile*            mFrameFile;       // Set of frame files
   Bool_t             mIsOpened;        // DB opened flag
   TString            mPathToDB;        // path to db file
      
public :
   VFileDirectDB();
   VFileDirectDB(char* filename, Option_t* mode="READ",char* frfilenames="", Option_t* option="R");
   virtual ~VFileDirectDB();
    
// Opening and building the database

   virtual Bool_t        Open(char* pathtoDB, Option_t* openopt = "READ");
   virtual void          Close();

// Drawing and getting information about the database
   
   virtual const char*   GetOption() {return 0;}
   virtual const char*   GetPathToDB() {return mPathToDB.Data();}
   virtual Bool_t        IsOpened() {return mIsOpened;}
   virtual Double_t      GetStart();
   virtual Double_t      GetEnd();
   virtual void          Print(Option_t* opt="");
   
// Getting the metadata information
   virtual void          GetMetaData(VMetaData* meta, Double_t time);
   virtual void          NextMetaData(VMetaData* meta);
   virtual void          PreviousMetaData(VMetaData* meta);
   virtual void          NextMetaData(VMetaData* meta, VConditionSet* condset);
   virtual void          NextMetaData(VMetaData* meta, Double_t time, VConditionFormula* condf=0);
   virtual void          NextMetaData(VMetaData* meta, Double_t time, VConditionSet* condset);
   virtual void          NextMetaData(VMetaData* meta, Double_t time, const char* selection);
   
   ClassDef(VFileDirectDB,0) // Local frame database
};
#endif