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 NATIVE_RDB_SHARED_RESULT_SET_H
17 #define NATIVE_RDB_SHARED_RESULT_SET_H
18 
19 #include <string>
20 
21 #include "rdb_visibility.h"
22 
23 namespace OHOS {
24 namespace AppDataFwk {
25 class SharedBlock;
26 }
27 namespace NativeRdb {
28 /**
29  * The SharedResultSet class of RDB.
30  */
31 class API_EXPORT SharedResultSet {
32 public:
33     /**
34      * @brief Constructor.
35      */
SharedResultSet()36     SharedResultSet() {}
37 
38     /**
39      * @brief Destructor.
40      */
~SharedResultSet()41     ~SharedResultSet() {}
42 
43     /**
44      * @brief Obtains a block from the {@link SharedResultSet}.
45      */
46     virtual std::shared_ptr<AppDataFwk::SharedBlock> GetBlock() = 0;
47 
48     /**
49      * @brief Called when the position of the result set changes.
50      */
51     virtual int OnGo(int oldRowIndex, int newRowIndex) = 0;
52 };
53 } // namespace NativeRdb
54 } // namespace OHOS
55 
56 #endif