| /** |
| * 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_CATALOG_CATALOG_DATABASE_LITE_HPP_ |
| #define QUICKSTEP_CATALOG_CATALOG_DATABASE_LITE_HPP_ |
| |
| #include "catalog/CatalogTypedefs.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| class CatalogRelationSchema; |
| |
| /** \addtogroup Catalog |
| * @{ |
| */ |
| |
| /** |
| * @brief A base class that the catalog database implements for both the master |
| * Catalog, and the CatalogCache in the distributed version. |
| * |
| * @note This class only contains virtual methods related to the relation id and |
| * CatalogRelationSchema. |
| **/ |
| class CatalogDatabaseLite { |
| public: |
| /** |
| * @brief Virtual destructor which recursively destroys children. |
| **/ |
| virtual ~CatalogDatabaseLite() { |
| } |
| |
| /** |
| * @brief Get this database's ID. |
| * |
| * @return This database's ID. |
| **/ |
| database_id getID() const { |
| return id_; |
| } |
| |
| /** |
| * @brief Check whether a relation with the given id exists. |
| * |
| * @param id The id to check for. |
| * @return Whether the relation exists. |
| **/ |
| virtual bool hasRelationWithId(const relation_id id) const = 0; |
| |
| /** |
| * @brief Get a relation schema by ID. |
| * |
| * @param id The id to search for. |
| * @return The relation schema with the given ID. |
| **/ |
| virtual const CatalogRelationSchema& getRelationSchemaById(const relation_id id) const = 0; |
| |
| /** |
| * @brief Drop (delete) a relation by id. |
| * |
| * @param id The ID of the relation to drop. |
| **/ |
| virtual void dropRelationById(const relation_id id) = 0; |
| |
| protected: |
| /** |
| * @brief Create a new database. |
| * |
| * @param parent The catalog this database belongs to. |
| * @param name This database's name. |
| * @param id This database's ID (defaults to -1, which means invalid/unset). |
| **/ |
| explicit CatalogDatabaseLite(const database_id id = -1) |
| : id_(id) { |
| } |
| |
| // The database id in Catalog. |
| database_id id_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(CatalogDatabaseLite); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_CATALOG_CATALOG_DATABASE_LITE_HPP_ |