1 // Copyright 2011 Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // * Neither the name of Google Inc. nor the names of its contributors 14 // may be used to endorse or promote products derived from this software 15 // without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 /// \file utils/sqlite/transaction.hpp 30 /// A RAII model for SQLite transactions. 31 32 #if !defined(UTILS_SQLITE_TRANSACTION_HPP) 33 #define UTILS_SQLITE_TRANSACTION_HPP 34 35 #include "utils/shared_ptr.hpp" 36 37 namespace utils { 38 namespace sqlite { 39 40 41 class database; 42 43 44 /// A RAII model for an SQLite 3 statement. 45 /// 46 /// A transaction is automatically rolled back when it goes out of scope unless 47 /// it has been explicitly committed. 48 class transaction { 49 struct impl; 50 51 /// Pointer to the shared internal implementation. 52 std::shared_ptr< impl > _pimpl; 53 54 explicit transaction(database&); 55 friend class database; 56 57 public: 58 ~transaction(void); 59 60 void commit(void); 61 void rollback(void); 62 }; 63 64 65 } // namespace sqlite 66 } // namespace utils 67 68 #endif // !defined(UTILS_SQLITE_TRANSACTION_HPP) 69