56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*=============================================================================
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# Filename: ResultSet.h
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# Author: Bookug Lobert
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# Mail: 1181955272@qq.com
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# Last Modified: 2015-10-24 21:57
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# Description: originally written by liyouhuan, modified by zengli
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=============================================================================*/
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#ifndef _QUERY_RESULTSET_H
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#define _QUERY_RESULTSET_H
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#include "../Util/Util.h"
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#include "../Util/Bstr.h"
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#include "../Util/Stream.h"
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class ResultSet
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{
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private:
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Stream* stream;
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bool useStream;
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public:
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int select_var_num;
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int ansNum;
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std::string* var_name;
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int output_offset, output_limit;
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std::string** answer;
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ResultSet();
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~ResultSet();
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ResultSet(int _v_num, const std::string* _v_names);
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void setUseStream();
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inline bool checkUseStream()
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{
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return this->useStream;
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}
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//convert to binary string
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//Bstr* to_bstr();
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//convert to usual string
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std::string to_str();
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void output(FILE* _fp); //output all results using Stream
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void setVar(const std::vector<std::string> & _var_names);
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//operations on private stream from caller
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void openStream(std::vector<int> &_keys, std::vector<bool> &_desc, int _output_offset, int _output_limit);
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void resetStream();
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void writeToStream(std::string& _s);
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std::string readAllFromStream();
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const Bstr* getOneRecord();
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};
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#endif //_QUERY_RESULTSET_H
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