1 /* 2 * Copyright (c) 2025 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 ARKDATA_INTELLIGENCE_PLATFORM_GDB_TRANSACTION_H 17 #define ARKDATA_INTELLIGENCE_PLATFORM_GDB_TRANSACTION_H 18 19 #include <functional> 20 #include <tuple> 21 #include <utility> 22 #include <vector> 23 24 #include "gdb_store_config.h" 25 #include "result.h" 26 27 namespace OHOS::DistributedDataAip { 28 class Connection; 29 class Transaction { 30 public: 31 using Creator = std::function<std::pair<int32_t, std::shared_ptr<Transaction>>(std::shared_ptr<Connection> conn)>; 32 33 static std::pair<int32_t, std::shared_ptr<Transaction>> Create(std::shared_ptr<Connection> conn); 34 static int32_t RegisterCreator(Creator creator); 35 36 API_EXPORT virtual ~Transaction() = default; 37 38 API_EXPORT virtual int32_t Commit() = 0; 39 API_EXPORT virtual int32_t Rollback() = 0; 40 virtual int32_t Close() = 0; 41 42 /** 43 * @brief Queries data in the database based on GQL statement. 44 * 45 * @param gql Indicates the GQL statement to execute. 46 */ 47 API_EXPORT virtual std::pair<int32_t, std::shared_ptr<Result>> Query(const std::string &gql) = 0; 48 49 /** 50 * @brief Executes an GQL statement. 51 * 52 * @param gql Indicates the GQL statement to execute. 53 */ 54 API_EXPORT virtual std::pair<int32_t, std::shared_ptr<Result>> Execute(const std::string &gql) = 0; 55 56 private: 57 static inline Creator creator_; 58 }; 59 } // namespace OHOS::DistributedDataAip 60 #endif 61