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 
21 #include "rdb_notifier_proxy.h"
22 #include "store/general_value.h"
23 #include "store/general_watcher.h"
24 
25 namespace OHOS::DistributedRdb {
26 class RdbWatcher : public DistributedData::GeneralWatcher {
27 public:
28     RdbWatcher();
29     int32_t OnChange(const Origin &origin, const PRIFields &primaryFields, ChangeInfo &&values) override;
30     int32_t OnChange(const Origin &origin, const Fields &fields, ChangeData &&datas) override;
31     sptr<RdbNotifierProxy> GetNotifier() const;
32     void SetNotifier(sptr<RdbNotifierProxy> notifier);
33 
34 private:
35     mutable std::shared_mutex mutex_;
36     sptr<RdbNotifierProxy> notifier_;
37 };
38 } // namespace OHOS::DistributedRdb
39 #endif // OHOS_DISTRIBUTED_DATA_DATAMGR_SERVICE_RDB_GENERAL_WATCHER_H
40