/**
* Relational pipes
* Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <codecvt>
#include <locale>
#include <vector>
#include <relpipe/writer/typedefs.h>
#include <relpipe/writer/TypeId.h>
namespace relpipe {
namespace tr {
namespace sql {
class ResultSet {
public:
class MetaData {
public:
class ColumnDescriptor {
public:
relpipe::writer::string_t name;
relpipe::writer::TypeId type = relpipe::writer::TypeId::STRING;
};
private:
unsigned short columnCount;
std::vector<ColumnDescriptor> columnDescriptors;
public:
MetaData(unsigned short columnCount, std::vector<ColumnDescriptor> columnDescriptors);
virtual ~MetaData();
unsigned short getColumnCount();
ColumnDescriptor describeColumn(unsigned short columnNumber);
};
private:
void* statement;
std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings
public:
ResultSet(void* statement);
virtual ~ResultSet();
MetaData* getMetaData();
bool next();
relpipe::writer::boolean_t getBoolean(unsigned short columnNumber, bool* isNull = nullptr);
relpipe::writer::integer_t getInteger(unsigned short columnNumber, bool* isNull = nullptr);
relpipe::writer::string_t getString(unsigned short columnNumber, bool* isNull = nullptr);
};
}
}
}