1 /*
2  * Copyright (c) 2021 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_SINGLE_VER_SCHEMA_DATABASE_UPGRADER_H
17 #define SQLITE_SINGLE_VER_SCHEMA_DATABASE_UPGRADER_H
18 
19 #include "sqlite_single_ver_database_upgrader.h"
20 #include "single_ver_schema_database_upgrader.h"
21 
22 namespace DistributedDB {
23 class SQLiteSingleVerSchemaDatabaseUpgrader final : public SQLiteSingleVerDatabaseUpgrader,
24     public SingleVerSchemaDatabaseUpgrader {
25 public:
26     // An invalid SchemaObject indicate no schema
27     SQLiteSingleVerSchemaDatabaseUpgrader(sqlite3 *db, const SchemaObject &newSchema,
28         const SecurityOption &securityOpt, bool isMemDB);
~SQLiteSingleVerSchemaDatabaseUpgrader()29     ~SQLiteSingleVerSchemaDatabaseUpgrader() override {};
30 protected:
31     // Get an empty string with return_code E_OK indicate no schema but everything normally
32     int GetDatabaseSchema(std::string &dbSchema) const override;
33 
34     // Set or update schema into database file
35     int SetDatabaseSchema(const std::string &dbSchema) override;
36 
37     int UpgradeValues() override;
38     int UpgradeIndexes(const IndexDifference &indexDiffer) override;
39 };
40 } // namespace DistributedDB
41 #endif // SQLITE_SINGLE_VER_SCHEMA_DATABASE_UPGRADER_H