DatabaseResultSet.h

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#ifndef __DATABASE_RESULT_SET_H__
#define __DATABASE_RESULT_SET_H__

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

#include "wx/hashmap.h"
#include "wx/hashset.h"
#include "wx/datetime.h"

#include "DatabaseErrorReporter.h"
#include "DatabaseStringConverter.h"
#include "ResultSetMetaData.h"

WX_DECLARE_STRING_HASH_MAP(int, StringToIntMap);
WX_DECLARE_HASH_SET( ResultSetMetaData*, wxPointerHash, wxPointerEqual, MetaDataHashSet );

class DatabaseResultSet : public DatabaseErrorReporter, public DatabaseStringConverter
{
public:
  DatabaseResultSet();

  virtual ~DatabaseResultSet();

  virtual bool Next() = 0;
  virtual void Close() = 0;
  
  virtual int LookupField(const wxString& strField) = 0;

  // get field
  virtual int GetResultInt(int nField) = 0;
  virtual wxString GetResultString(int nField) = 0;
  virtual long GetResultLong(int nField) = 0;
  virtual bool GetResultBool(int nField) = 0;
  virtual wxDateTime GetResultDate(int nField) = 0;
  virtual void* GetResultBlob(int nField, wxMemoryBuffer& Buffer) = 0;
  virtual double GetResultDouble(int nField) = 0;
  virtual bool IsFieldNull(int nField) = 0;
  
  virtual int GetResultInt(const wxString& strField);
  virtual wxString GetResultString(const wxString& strField);
  virtual long GetResultLong(const wxString& strField);
  virtual bool GetResultBool(const wxString& strField);
  virtual wxDateTime GetResultDate(const wxString& strField);
  virtual void* GetResultBlob(const wxString& strField, wxMemoryBuffer& Buffer);
  virtual double GetResultDouble(const wxString& strField);
  virtual bool IsFieldNull(const wxString& strField);

  // get MetaData
  virtual ResultSetMetaData* GetMetaData() = 0;
  virtual bool CloseMetaData(ResultSetMetaData* pMetaData);

protected:
  void CloseMetaData();
  void LogMetaDataForCleanup(ResultSetMetaData* pMetaData) { m_MetaData.insert(pMetaData); }
  
private:
  MetaDataHashSet m_MetaData;
};

#endif // __DATABASE_RESULT_SET_H__

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