TOracleRow.h

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// @(#)root/physics:$Id$
// Author: Yan Liu and Shaowen Wang   23/11/04
 
/*************************************************************************
 * Copyright (C) 1995-2005, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOT_TOracleRow
#define ROOT_TOracleRow
 
#include "TSQLRow.h"
 
#include <vector>
 
namespace oracle {
namespace occi {
   class ResultSet;
   struct MetaData;
}
}
 
class TOracleRow : public TSQLRow {
 
private:
   oracle::occi::ResultSet *fResult{nullptr};      // current result set
   std::vector<oracle::occi::MetaData> *fFieldInfo{nullptr};   // metadata for columns
   Int_t                    fFieldCount{0};
   char                   **fFieldsBuffer{nullptr};
 
   Bool_t  IsValid(Int_t field);
 
   TOracleRow(const TOracleRow &) = delete;
   TOracleRow &operator=(const TOracleRow &) = delete;
 
protected:
   void        GetRowData();
 
public:
   TOracleRow(oracle::occi::ResultSet *rs,
              std::vector<oracle::occi::MetaData> *fieldMetaData);
   ~TOracleRow();
 
   void        Close(Option_t *opt="") final;
   ULong_t     GetFieldLength(Int_t field) final;
   const char *GetField(Int_t field) final;
 
   ClassDefOverride(TOracleRow,0)  // One row of Oracle query result
};
 
#endif