1 /* 2 * Copyright (c) 2023 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 OHOS_DISTRIBUTED_DATA_DATAMGR_SERVICE_RDB_GENERAL_WATCHER_H 17 #define OHOS_DISTRIBUTED_DATA_DATAMGR_SERVICE_RDB_GENERAL_WATCHER_H 18 #include <mutex> 19 #include <shared_mutex> 20 #include "rdb_notifier_proxy.h" 21 #include "store/general_value.h" 22 #include "store/general_watcher.h" 23 24 namespace OHOS::DistributedRdb { 25 class RdbWatcher : public DistributedData::GeneralWatcher { 26 public: 27 RdbWatcher(); 28 int32_t OnChange(const Origin &origin, const PRIFields &primaryFields, ChangeInfo &&values) override; 29 int32_t OnChange(const Origin &origin, const Fields &fields, ChangeData &&datas) override; 30 sptr<RdbNotifierProxy> GetNotifier() const; 31 void SetNotifier(sptr<RdbNotifierProxy> notifier); 32 33 private: 34 mutable std::shared_mutex mutex_; 35 sptr<RdbNotifierProxy> notifier_; 36 }; 37 } // namespace OHOS::DistributedRdb 38 #endif // OHOS_DISTRIBUTED_DATA_DATAMGR_SERVICE_RDB_GENERAL_WATCHER_H 39