1 /*
2  * Copyright (c) 2022 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 DATASHARE_SHARED_RESULT_SET_H
17 #define DATASHARE_SHARED_RESULT_SET_H
18 
19 #include <string>
20 
21 namespace OHOS {
22 namespace AppDataFwk {
23 class SharedBlock;
24 }
25 namespace DataShare {
26 class DataShareSharedResultSet {
27 public:
DataShareSharedResultSet()28     DataShareSharedResultSet() {}
~DataShareSharedResultSet()29     ~DataShareSharedResultSet() {}
30     /**
31      * Obtains a block from the {@link SharedResultSet}
32      */
33     virtual std::shared_ptr<AppDataFwk::SharedBlock> GetBlock() = 0;
34     /**
35      * Adds the data of a {@code SharedResultSet} to a {@link SharedBlock}
36      */
37     virtual void FillBlock(int startRowIndex, AppDataFwk::SharedBlock *block) = 0;
38     /**
39      * Called when the position of the result set changes
40      */
41     virtual bool OnGo(int oldRowIndex, int newRowIndex, int *cachedIndex) = 0;
42 };
43 } // namespace DataShare
44 } // namespace OHOS
45 
46 #endif