1 /* 2 * Copyright (C) 2010 Google Inc. 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 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef SQLTransactionSync_h 32 #define SQLTransactionSync_h 33 34 #if ENABLE(DATABASE) 35 36 #include "ExceptionCode.h" 37 #include <wtf/Forward.h> 38 #include <wtf/RefCounted.h> 39 #include <wtf/Vector.h> 40 41 namespace WebCore { 42 43 class DatabaseSync; 44 class SQLResultSet; 45 class SQLTransactionClient; 46 class SQLTransactionSyncCallback; 47 class SQLValue; 48 class SQLiteTransaction; 49 50 // Instances of this class should be created and used only on the worker's context thread. 51 class SQLTransactionSync : public RefCounted<SQLTransactionSync> { 52 public: 53 static PassRefPtr<SQLTransactionSync> create(DatabaseSync*, PassRefPtr<SQLTransactionSyncCallback>, bool readOnly = false); 54 55 ~SQLTransactionSync(); 56 57 PassRefPtr<SQLResultSet> executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionCode&); 58 database()59 DatabaseSync* database() { return m_database.get(); } isReadOnly()60 bool isReadOnly() const { return m_readOnly; } 61 62 ExceptionCode begin(); 63 ExceptionCode execute(); 64 ExceptionCode commit(); 65 void rollback(); 66 67 private: 68 SQLTransactionSync(DatabaseSync*, PassRefPtr<SQLTransactionSyncCallback>, bool readOnly); 69 70 RefPtr<DatabaseSync> m_database; 71 RefPtr<SQLTransactionSyncCallback> m_callback; 72 bool m_readOnly; 73 74 bool m_modifiedDatabase; 75 OwnPtr<SQLTransactionClient> m_transactionClient; 76 OwnPtr<SQLiteTransaction> m_sqliteTransaction; 77 }; 78 79 } // namespace WebCore 80 81 #endif 82 83 #endif // SQLTransactionSync_h 84