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_ABS_RESULT_SET_H 17 #define NATIVE_RDB_ABS_RESULT_SET_H 18 19 #include <map> 20 #include <memory> 21 #include <string> 22 #include <vector> 23 24 #include "result_set.h" 25 26 namespace OHOS { 27 namespace NativeRdb { 28 class AbsResultSet : public ResultSet { 29 public: 30 AbsResultSet(); 31 virtual ~AbsResultSet(); 32 int GetRowCount(int &count) override; 33 int GetAllColumnNames(std::vector<std::string> &columnNames) override; 34 int GetBlob(int columnIndex, std::vector<uint8_t> &blob) override; 35 int GetString(int columnIndex, std::string &value) override; 36 int GetInt(int columnIndex, int &value) override; 37 int GetLong(int columnIndex, int64_t &value) override; 38 int GetDouble(int columnIndex, double &value) override; 39 int IsColumnNull(int columnIndex, bool &isNull) override; 40 int GoToRow(int position) override; 41 int GetColumnType(int columnIndex, ColumnType &columnType) override; 42 int GetRowIndex(int &position) const override; 43 int GoTo(int offset) override; 44 int GoToFirstRow() override; 45 int GoToLastRow() override; 46 int GoToNextRow() override; 47 int GoToPreviousRow() override; 48 int IsAtFirstRow(bool &result) const override; 49 int IsAtLastRow(bool &result) override; 50 int IsStarted(bool &result) const override; 51 int IsEnded(bool &result) override; 52 int GetColumnCount(int &count) override; 53 int GetColumnIndex(const std::string &columnName, int &columnIndex) override; 54 int GetColumnName(int columnIndex, std::string &columnName) override; 55 bool IsClosed() const override; 56 int Close() override; 57 58 protected: 59 std::map<std::string, int> columnMap_; 60 // The default position of the result set 61 static const int INIT_POS = -1; 62 /* 63 * The value can be in the range [-1 ~ n], where -1 represents the start flag position and N represents the data end 64 * flag position, and [0, n-1] represents the real data index. 65 */ 66 int rowPos_; 67 std::vector<std::string> columnNames_; 68 // Indicates whether the result set is closed 69 bool isClosed; 70 }; 71 } // namespace NativeRdb 72 } // namespace OHOS 73 74 #endif