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SQLQueryTranslator.h

                              /* SQLQueryTranslator.h */


#ifndef  SQL_QUERY_TRANSLATOR_HH
#define  SQL_QUERY_TRANSLATOR_HH

#include "TableRowTranslator.h"
#include "QueryTranslationException.h"
#include "SQLPredicateTree.h"
#include <set>
#include "QueryTranslator.h"


namespace LcgInfo{
/**************************  CLASS SQLQueryTranslator  *******************************/

class SQLQueryTranslator: public QueryTranslator{

public:

   SQLQueryTranslator();

   SQLQueryTranslator(std::string const & pMapFile);

   SQLQueryTranslator(LcgConfigBuffer::ConfigBuffer & pMap);

   virtual ~SQLQueryTranslator();

   virtual std::vector<std::string> translateQuery(std::string const & pQueryCanonical)=0;

   void translateSemantic(std::string const & pQueryCanonical, SQLPredicateTree & pPred,
                          std::vector<std::string> & pRowsToReturn,
                          std::set<std::string> & pNewTableList);

   
protected:
   
/*
 * Used to tokenize input SQL queries
 */
static std::string const CHARS_TO_DIVIDE_SQL_WORDS;

/*
 * The chars that can be escaped by the user in his/her original query.
 */
static std::string const CHARS_POSSIBLY_ESCAPED;
   
}; // end of class SQLQueryTranslator


}
#endif

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