#ifndef _SQL_DATASOURCE_HPP_
#define _SQL_DATASOURCE_HPP_
#ifndef _SQL_DATAITEM_HPP_
#include <sql/dataitem.hpp>
#endif

class DataSource
{
public:
  enum Fetch{First=SQL_FETCH_FIRST,Next=SQL_FETCH_NEXT};
  DataSource(HandleEnvironment &handleEnvironment);
	virtual ~DataSource();
	WORD sourceFirst(DataItem &someDataItem);
	WORD sourceNext(DataItem &someDataItem);
private:
  WORD sourceName(DataItem &someDataItem,Fetch sourceFetch);
	HandleEnvironment &mhEnvironment;
};

inline
DataSource::DataSource(HandleEnvironment &handleEnvironment)
: mhEnvironment(handleEnvironment)
{
}

inline
DataSource::~DataSource()
{
}

inline
WORD DataSource::sourceFirst(DataItem &someDataItem)
{
  return sourceName(someDataItem,First);
}

inline
WORD DataSource::sourceNext(DataItem &someDataItem)
{
  return sourceName(someDataItem,Next);
}

inline
WORD DataSource::sourceName(DataItem &someDataItem,Fetch sourceFetch)
{
  RETCODE sqlReturn;  
  UCHAR sourceName[SQL_MAX_DSN_LENGTH+1];
	UCHAR sourceDescription[1024];
	SWORD cbNameLength(sizeof(sourceName));
	SWORD cbDescriptionLength(sizeof(sourceDescription));
	SWORD outNameLength;
	SWORD outDescriptionLength;

  sqlReturn=::SQLDataSources(mhEnvironment,sourceFetch,sourceName,cbNameLength,&outNameLength,sourceDescription,cbDescriptionLength,&outDescriptionLength);
	if(sqlReturn!=SQL_SUCCESS&&sqlReturn!=SQL_SUCCESS_WITH_INFO)return TRUE;
	someDataItem.sourceName((char*)sourceName);
	someDataItem.sourceDescription((char*)sourceDescription);
	return FALSE;
}
#endif