mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
150 lines
3.5 KiB
C++
150 lines
3.5 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: dmlcolumn.h 9210 2013-01-21 14:10:42Z rdempsey $
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*
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*
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***********************************************************************/
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/** @file */
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#pragma once
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#include <string>
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#include <vector>
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#include "dmlobject.h"
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#include "bytestream.h"
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#include <boost/algorithm/string/case_conv.hpp>
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#include "nullstring.h"
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#define EXPORT
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namespace dmlpackage
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{
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/** @brief concrete implementation of a DMLObject
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* Specifically for representing a database column
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*/
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class DMLColumn : public DMLObject
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{
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public:
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/** @brief ctor
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*/
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EXPORT DMLColumn();
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/** @brief new ctor
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* isNUll is currently not in use. It supposed to indicate whether each value is null or not.
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*/
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EXPORT DMLColumn(std::string name, const std::vector<utils::NullString>& valueList, bool isFromCol = false,
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uint32_t funcScale = 0, bool isNULL = false);
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/** @brief new ctor
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*
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*/
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EXPORT DMLColumn(std::string name, utils::NullString& value, bool isFromCol = false, uint32_t funcScale = 0,
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bool isNULL = false);
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/** @brief dtor
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*/
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EXPORT ~DMLColumn() override;
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/** @brief read a DMLColumn from a ByteStream
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*
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* @param bytestream the ByteStream to read from
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*/
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EXPORT int read(messageqcpp::ByteStream& bytestream) override;
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/** @brief write a DML column to a ByteStream
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*
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* @param bytestream the ByteStream to write to
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*/
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EXPORT int write(messageqcpp::ByteStream& bytestream) override;
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/** @brief get the data for the column
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*/
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const std::vector<utils::NullString>& get_DataVector() const
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{
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return fColValuesList;
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}
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/** @brief get the data for the column
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*/
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bool get_isnull() const
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{
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return fisNULL;
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}
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/** @brief get the fIsFromCol data for the column
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*/
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bool get_isFromCol() const
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{
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return fIsFromCol;
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}
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/** @brief get the fFuncScale data for the column
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*/
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uint32_t get_funcScale() const
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{
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return fFuncScale;
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}
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/** @brief get the column name
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*/
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const std::string get_Name() const
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{
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return fName;
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}
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/** @brief set the column name
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*/
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EXPORT void set_Name(std::string name)
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{
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boost::algorithm::to_lower(name);
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fName = name;
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}
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/** @brief set the NULL flag
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*/
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void set_isnull(bool isNULL)
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{
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fisNULL = isNULL;
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}
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/** @brief set the fIsFromCol flag
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*/
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void set_isFromCol(bool isFromCol)
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{
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fIsFromCol = isFromCol;
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}
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/** @brief set the fFuncScale
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*/
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void set_funcScale(uint32_t funcScale)
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{
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fFuncScale = funcScale;
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}
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protected:
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private:
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std::string fName;
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std::vector<utils::NullString> fColValuesList;
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bool fisNULL;
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bool fIsFromCol;
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uint32_t fFuncScale;
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};
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/** @brief a vector of DMLColumns
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*/
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typedef std::vector<DMLColumn*> ColumnList;
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} // namespace dmlpackage
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#undef EXPORT
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