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 KVDB_COMMIT_NOTIFY_DATA_H 17 #define KVDB_COMMIT_NOTIFY_DATA_H 18 19 #include <list> 20 21 #include "db_types.h" 22 #include "ref_object.h" 23 #include "macro_utils.h" 24 #include "kvdb_conflict_entry.h" 25 26 namespace DistributedDB { 27 // Data from local commit or syncer commit. 28 class KvDBCommitNotifyData : public RefObject { 29 public: 30 KvDBCommitNotifyData() = default; ~KvDBCommitNotifyData()31 virtual ~KvDBCommitNotifyData() {} 32 DISABLE_COPY_ASSIGN_MOVE(KvDBCommitNotifyData); 33 34 // get the new inserted entries. 35 virtual const std::list<Entry> GetInsertedEntries(int &errCode) const = 0; 36 37 // get the new updated entries. 38 virtual const std::list<Entry> GetUpdatedEntries(int &errCode) const = 0; 39 40 // get the new deleted entries. 41 virtual const std::list<Entry> GetDeletedEntries(int &errCode) const = 0; 42 43 // get all conflict entries when commit. 44 virtual const std::list<KvDBConflictEntry> GetCommitConflicts(int &errCode) const = 0; 45 46 // database is cleared by user in the commit. 47 virtual bool IsCleared() const = 0; 48 49 // test if the inserted/updated/deleted data is empty or not. 50 virtual bool IsChangedDataEmpty() const = 0; 51 52 // test if the conflict data is empty or not. 53 virtual bool IsConflictedDataEmpty() const = 0; 54 }; 55 } // namespace DistributedDB 56 57 #endif // KVDB_COMMIT_NOTIFY_DATA_H 58