1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef SQLITE_RELATIONAL_DATABASE_UPGRADER_H 17 #define SQLITE_RELATIONAL_DATABASE_UPGRADER_H 18 19 #include "database_upgrader.h" 20 #include "sqlite_utils.h" 21 #include "types_export.h" 22 23 namespace DistributedDB { 24 class SqliteRelationalDatabaseUpgrader : public DatabaseUpgrader { 25 public: 26 explicit SqliteRelationalDatabaseUpgrader(sqlite3 *db); 27 ~SqliteRelationalDatabaseUpgrader() override; 28 int Upgrade() override; 29 30 private: 31 int BeginUpgrade(); 32 int ExecuteUpgrade(); 33 int EndUpgrade(bool isSuccess); 34 35 bool IsNewestVersion(const std::string &logTableVersion); 36 int UpgradeTrigger(const std::string &logTableVersion, const RelationalSchemaObject &schemaObj, 37 const RelationalSchemaObject &trackerSchemaObj); 38 int UpgradeLogTable(const std::string &logTableVersion, const RelationalSchemaObject &schemaObj, 39 const RelationalSchemaObject &trackerSchemaObj); 40 int UpgradeLogBaseOnVersion(const std::string &oldVersion, const std::string &tableName); 41 int GetParseSchema(RelationalSchemaObject &schemaObj, RelationalSchemaObject &trackerSchemaObj); 42 sqlite3 *db_; 43 }; 44 } // namespace DistributedDB 45 #endif // SQLITE_RELATIONAL_DATABASE_UPGRADER_H