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_SQLITE_STATEMENT_H 17 #define NATIVE_RDB_SQLITE_STATEMENT_H 18 19 #include <vector> 20 21 #include "sqlite3sym.h" 22 #include "value_object.h" 23 24 namespace OHOS { 25 namespace NativeRdb { 26 class SqliteStatement { 27 public: 28 SqliteStatement(); 29 ~SqliteStatement(); 30 int Prepare(sqlite3 *dbHandle, const std::string &sql); 31 int Finalize(); 32 int BindArguments(const std::vector<ValueObject> &bindArgs) const; 33 int ResetStatementAndClearBindings() const; 34 int Step() const; 35 36 int GetColumnCount(int &count) const; 37 int GetColumnName(int index, std::string &columnName) const; 38 int GetColumnType(int index, int &columnType) const; 39 int GetColumnBlob(int index, std::vector<uint8_t> &value) const; 40 int GetColumnString(int index, std::string &value) const; 41 int GetColumnLong(int index, int64_t &value) const; 42 int GetColumnDouble(int index, double &value) const; 43 bool IsReadOnly() const; 44 int GetNumParameters(int &numParams) const; GetSql3Stmt()45 sqlite3_stmt *GetSql3Stmt() const 46 { 47 return stmtHandle; 48 } 49 50 private: 51 int InnerBindArguments(const std::vector<ValueObject> &bindArgs) const; 52 std::string sql; 53 sqlite3_stmt *stmtHandle; 54 bool readOnly; 55 int columnCount; 56 int numParameters; 57 }; 58 59 } // namespace NativeRdb 60 } // namespace OHOS 61 #endif