| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| **/ |
| |
| #ifndef QUICKSTEP_PARSER_PARSE_GROUP_BY_HPP_ |
| #define QUICKSTEP_PARSER_PARSE_GROUP_BY_HPP_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "parser/ParseExpression.hpp" |
| #include "parser/ParseTreeNode.hpp" |
| #include "utility/Macros.hpp" |
| #include "utility/PtrList.hpp" |
| |
| namespace quickstep { |
| |
| /** \addtogroup Parser |
| * @{ |
| */ |
| |
| /** |
| * @brief The parsed representaiton of a GROUP BY clause. |
| */ |
| class ParseGroupBy : public ParseTreeNode { |
| public: |
| /** |
| * @brief Constructor. |
| * |
| * @param line_number The line number of "GROUP" in the SQL statement. |
| * @param column_number The column number of "GROUP" in the SQL statement. |
| * @param group_by_expressions The group by expressions. |
| */ |
| ParseGroupBy(const int line_number, const int column_number, PtrList<ParseExpression> *grouping_expressions) |
| : ParseTreeNode(line_number, column_number), |
| grouping_expressions_(grouping_expressions) { |
| } |
| |
| /** |
| * @brief Destructor. |
| */ |
| ~ParseGroupBy() override {} |
| |
| /** |
| * @brief Gets the GROUP BY expressions. |
| * |
| * @return GROUP BY expressions. |
| */ |
| const PtrList<ParseExpression>* grouping_expressions() const { |
| return grouping_expressions_.get(); |
| } |
| |
| std::string getName() const override { |
| return "GroupBy"; |
| } |
| |
| protected: |
| void getFieldStringItems(std::vector<std::string> *inline_field_names, |
| std::vector<std::string> *inline_field_values, |
| std::vector<std::string> *non_container_child_field_names, |
| std::vector<const ParseTreeNode*> *non_container_child_fields, |
| std::vector<std::string> *container_child_field_names, |
| std::vector<std::vector<const ParseTreeNode*>> *container_child_fields) const override; |
| |
| private: |
| std::unique_ptr<PtrList<ParseExpression>> grouping_expressions_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ParseGroupBy); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif /* QUICKSTEP_PARSER_PARSEGROUPBY_HPP_ */ |