RDBRecordset.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/

 
 
#ifndef RDBACCESSSVC_RDBRECORDSET_H
#define RDBACCESSSVC_RDBRECORDSET_H
 
#include "RDBAccessSvc/IRDBRecordset.h"
#include "RDBVersionAccessor.h"
#include <string>
 
class RDBAccessSvc;
class IRDBQuery;
 
namespace coral
{
  class ISessionProxy;
}

 
class RDBRecordset final: public IRDBRecordset
{
 public:
  RDBRecordset(RDBAccessSvc* accessSvc)
    : m_accessSvc(accessSvc) {}
  
  void getData(coral::ISessionProxy* session
           , const std::string& nodeName
           , const std::string& tagName
           , const std::string& tagId);

  unsigned int size() const override;

  std::string nodeName() const override;

  std::string tagName() const override;

  const IRDBRecord* operator[](unsigned int index) const override;

  IRDBRecordset::const_iterator begin() const override;

  IRDBRecordset::const_iterator end() const override;
 
  // Comparison operator
  bool operator!=(const RDBRecordset& rhs) const;
 
  // Comparison results with other recordset
  void compare(const RDBRecordset& rec, std::ostream& os) const;
 
  // Set table name only when retrieval of data has failed and
  // an empty recordset needs to be returned to the client
  void setNodeName(const std::string& nodeName);
 
 private:
  std::string                m_tableName{};
  std::string                m_tagName{};
  RecordsVector              m_records;
  RDBAccessSvc*              m_accessSvc{nullptr};
};
 
#endif