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
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  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 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28#ifndef IDBRecordIdentifier_h
29#define IDBRecordIdentifier_h
30
31#include <wtf/RefCounted.h>
32#include <wtf/Vector.h>
33
34#if ENABLE(INDEXED_DATABASE)
35
36namespace WebCore {
37
38class IDBRecordIdentifier : public RefCounted<IDBRecordIdentifier> {
39public:
40    static PassRefPtr<IDBRecordIdentifier> create(const Vector<char>& encodedPrimaryKey, int64_t version)
41    {
42        return adoptRef(new IDBRecordIdentifier(encodedPrimaryKey, version));
43    }
44
45    static PassRefPtr<IDBRecordIdentifier> create()
46    {
47        return adoptRef(new IDBRecordIdentifier);
48    }
49
50    const Vector<char>& encodedPrimaryKey() const { return m_encodedPrimaryKey; }
51    int64_t version() const { return m_version; }
52    void reset(const Vector<char>& encodedPrimaryKey, int64_t version)
53    {
54        m_encodedPrimaryKey = encodedPrimaryKey;
55        m_version = version;
56    }
57
58private:
59    IDBRecordIdentifier(const Vector<char>& encodedPrimaryKey, int64_t version)
60        : m_encodedPrimaryKey(encodedPrimaryKey)
61        , m_version(version)
62    {
63        ASSERT(!encodedPrimaryKey.isEmpty());
64    }
65
66    IDBRecordIdentifier()
67        : m_version(-1)
68    {
69    }
70
71    Vector<char> m_encodedPrimaryKey;
72    int64_t m_version;
73};
74
75} // namespace WebCore
76
77#endif
78
79#endif // IDBRecordIdentifier_h
80