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 <memory> 39#include <wtf/Forward.h> 40#include <wtf/RefCounted.h> 41#include <wtf/Vector.h> 42#include <wtf/text/WTFString.h> 43 44namespace WebCore { 45 46class DatabaseSync; 47class SQLResultSet; 48class SQLTransactionClient; 49class SQLTransactionSyncCallback; 50class SQLValue; 51class SQLiteTransaction; 52 53// Instances of this class should be created and used only on the worker's context thread. 54class SQLTransactionBackendSync : public RefCounted<SQLTransactionBackendSync> { 55public: 56 ~SQLTransactionBackendSync(); 57 58 PassRefPtr<SQLResultSet> executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionCode&); 59 60 DatabaseSync* database() { return m_database.get(); } 61 bool isReadOnly() const { return m_readOnly; } 62 63 ExceptionCode begin(); 64 ExceptionCode execute(); 65 ExceptionCode commit(); 66 void rollback(); 67 68private: 69 SQLTransactionBackendSync(DatabaseSync*, PassRefPtr<SQLTransactionSyncCallback>, bool readOnly); 70 71 RefPtr<DatabaseSync> m_database; 72 RefPtr<SQLTransactionSyncCallback> m_callback; 73 bool m_readOnly; 74 bool m_hasVersionMismatch; 75 76 bool m_modifiedDatabase; 77 std::unique_ptr<SQLTransactionClient> m_transactionClient; 78 std::unique_ptr<SQLiteTransaction> m_sqliteTransaction; 79 80 friend class SQLTransactionSync; // FIXME: Remove this once the front-end has been properly isolated. 81}; 82 83} // namespace WebCore 84 85#endif 86 87#endif // SQLTransactionBackendSync_h 88