1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *               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
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef IDBIndexWriterLevelDB_h
28#define IDBIndexWriterLevelDB_h
29
30#include "IDBBackingStoreLevelDB.h"
31#include "IDBDatabaseBackend.h"
32#include "IDBDatabaseMetadata.h"
33#include <wtf/RefCounted.h>
34
35#if ENABLE(INDEXED_DATABASE)
36#if USE(LEVELDB)
37
38namespace WebCore {
39
40typedef Vector<RefPtr<IDBKey>> IndexKeys;
41
42class IDBIndexWriterLevelDB : public RefCounted<IDBIndexWriterLevelDB> {
43public:
44    static PassRefPtr<IDBIndexWriterLevelDB> create(const IDBIndexMetadata& indexMetadata, const IndexKeys& indexKeys)
45    {
46        return adoptRef(new IDBIndexWriterLevelDB(indexMetadata, indexKeys));
47    }
48
49    bool verifyIndexKeys(IDBBackingStoreLevelDB&, IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, bool& canAddKeys, const IDBKey* primaryKey = 0, String* errorMessage = 0) const WARN_UNUSED_RETURN;
50
51    void writeIndexKeys(const IDBRecordIdentifier*, IDBBackingStoreLevelDB&, IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId) const;
52
53private:
54    IDBIndexWriterLevelDB(const IDBIndexMetadata&, const IndexKeys&);
55
56    bool addingKeyAllowed(IDBBackingStoreLevelDB&, IDBBackingStoreTransactionLevelDB&, int64_t databaseId, int64_t objectStoreId, int64_t indexId, const IDBKey* indexKey, const IDBKey* primaryKey, bool& allowed) const WARN_UNUSED_RETURN;
57
58    const IDBIndexMetadata m_indexMetadata;
59    IndexKeys m_indexKeys;
60};
61
62} // namespace WebCore
63
64#endif // #if USE(LEVELDB)
65#endif // ENABLE(INDEXED_DATABASE)
66#endif // IDBIndexWriterLevelDB_h
67