Code_set_row.hpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2003 MySQL AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef ODBC_CODEGEN_Code_set_row_hpp
- #define ODBC_CODEGEN_Code_set_row_hpp
- #include <vector>
- #include <common/common.hpp>
- #include <common/DataRow.hpp>
- #include "Code_base.hpp"
- #include "Code_dml_row.hpp"
- #include "Code_expr_row.hpp"
- #include "Code_root.hpp"
- /**
- * @class Plan_set_row
- * @brief Row of column assigments in update
- *
- * Used only in parse. The column and expression rows are moved
- * to the update node immediately after parse.
- */
- class Plan_set_row : public Plan_base {
- public:
- Plan_set_row(Plan_root* root);
- virtual ~Plan_set_row();
- Plan_base* analyze(Ctx& ctx, Ctl& ctl);
- Exec_base* codegen(Ctx& ctx, Ctl& ctl);
- void print(Ctx& ctx);
- // children
- void addColumn(Plan_dml_column* column);
- void addExpr(Plan_expr* expr);
- protected:
- friend class Plan_update;
- friend class Plan_insert; // for MySql
- Plan_dml_row* m_dmlRow;
- Plan_expr_row* m_exprRow;
- };
- inline
- Plan_set_row::Plan_set_row(Plan_root* root) :
- Plan_base(root)
- {
- m_dmlRow = new Plan_dml_row(root);
- root->saveNode(m_dmlRow);
- m_exprRow = new Plan_expr_row(root);
- root->saveNode(m_exprRow);
- }
- // children
- inline void
- Plan_set_row::addColumn(Plan_dml_column* column)
- {
- m_dmlRow->addColumn(column);
- }
- inline void
- Plan_set_row::addExpr(Plan_expr* expr)
- {
- m_exprRow->addExpr(expr);
- }
- #endif