1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * Copyright (C) 2013 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef SQLTransactionBackendSync_h 33#define SQLTransactionBackendSync_h 34 35#if ENABLE(SQL_DATABASE) 36 37#include "DatabaseBasicTypes.h" 38#include <wtf/Forward.h> 39#include <wtf/RefCounted.h> 40#include <wtf/Vector.h> 41#include <wtf/text/WTFString.h> 42 43namespace WebCore { 44 45class DatabaseSync; 46class SQLResultSet; 47class SQLTransactionClient; 48class SQLTransactionSyncCallback; 49class SQLValue; 50class SQLiteTransaction; 51 52// Instances of this class should be created and used only on the worker's context thread. 53class SQLTransactionBackendSync : public RefCounted<SQLTransactionBackendSync> { 54public: 55 ~SQLTransactionBackendSync(); 56 57 PassRefPtr<SQLResultSet> executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionCode&); 58 59 DatabaseSync* database() { return m_database.get(); } 60 bool isReadOnly() const { return m_readOnly; } 61 62 ExceptionCode begin(); 63 ExceptionCode execute(); 64 ExceptionCode commit(); 65 void rollback(); 66 67private: 68 SQLTransactionBackendSync(DatabaseSync*, PassRefPtr<SQLTransactionSyncCallback>, bool readOnly); 69 70 RefPtr<DatabaseSync> m_database; 71 RefPtr<SQLTransactionSyncCallback> m_callback; 72 bool m_readOnly; 73 bool m_hasVersionMismatch; 74 75 bool m_modifiedDatabase; 76 OwnPtr<SQLTransactionClient> m_transactionClient; 77 OwnPtr<SQLiteTransaction> m_sqliteTransaction; 78 79 friend class SQLTransactionSync; // FIXME: Remove this once the front-end has been properly isolated. 80}; 81 82} // namespace WebCore 83 84#endif 85 86#endif // SQLTransactionBackendSync_h 87