1/*
2 * Copyright (C) 2013 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef AbstractSQLTransaction_h
27#define AbstractSQLTransaction_h
28
29#if ENABLE(SQL_DATABASE)
30
31#include "SQLTransactionState.h"
32#include <wtf/ThreadSafeRefCounted.h>
33
34namespace WebCore {
35
36class AbstractSQLTransactionBackend;
37
38class AbstractSQLTransaction : public ThreadSafeRefCounted<AbstractSQLTransaction> {
39public:
40    virtual ~AbstractSQLTransaction() { }
41
42    virtual void requestTransitToState(SQLTransactionState) = 0;
43
44    // Used during initialization only.
45    virtual bool hasCallback() const = 0;
46    virtual bool hasSuccessCallback() const = 0;
47    virtual bool hasErrorCallback() const = 0;
48    virtual void setBackend(AbstractSQLTransactionBackend*) = 0;
49};
50
51} // namespace WebCore
52
53#endif // ENABLE(SQL_DATABASE)
54
55#endif // AbstractSQLTransaction_h
56