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 KVSTORE_SYNC_CALLBACK_H 17 #define KVSTORE_SYNC_CALLBACK_H 18 19 #include <map> 20 #include "types.h" 21 22 namespace OHOS { 23 namespace DistributedKv { 24 // client implement this class to watch kvstore change. 25 class KvStoreSyncCallback { 26 public: 27 API_EXPORT KvStoreSyncCallback() = default; 28 ~KvStoreSyncCallback()29 API_EXPORT virtual ~KvStoreSyncCallback() {} 30 31 // This virtual function will be called on sync callback. 32 // Client needs to override this function to receive sync results. 33 // Parameters: 34 // results: sync results for devices set in Sync function. 35 API_EXPORT virtual void SyncCompleted(const std::map<std::string, Status> &results) = 0; 36 }; 37 } // namespace DistributedKv 38 } // namespace OHOS 39 #endif // KVSTORE_SYNC_CALLBACK_H 40