1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_INDEX_WRITER_H_
6#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_INDEX_WRITER_H_
7
8#include <map>
9#include <vector>
10
11#include "base/basictypes.h"
12#include "base/memory/scoped_vector.h"
13#include "content/browser/indexed_db/indexed_db_backing_store.h"
14#include "content/browser/indexed_db/indexed_db_database.h"
15#include "content/browser/indexed_db/indexed_db_metadata.h"
16#include "content/common/indexed_db/indexed_db_key_path.h"
17
18namespace content {
19
20class IndexedDBTransaction;
21struct IndexedDBObjectStoreMetadata;
22
23class IndexWriter {
24 public:
25  explicit IndexWriter(const IndexedDBIndexMetadata& index_metadata);
26
27  IndexWriter(const IndexedDBIndexMetadata& index_metadata,
28              const IndexedDBDatabase::IndexKeys& index_keys);
29
30  bool VerifyIndexKeys(IndexedDBBackingStore* store,
31                       IndexedDBBackingStore::Transaction* transaction,
32                       int64 database_id,
33                       int64 object_store_id,
34                       int64 index_id,
35                       bool* can_add_keys,
36                       const IndexedDBKey& primary_key,
37                       base::string16* error_message) const WARN_UNUSED_RESULT;
38
39  void WriteIndexKeys(const IndexedDBBackingStore::RecordIdentifier& record,
40                      IndexedDBBackingStore* store,
41                      IndexedDBBackingStore::Transaction* transaction,
42                      int64 database_id,
43                      int64 object_store_id) const;
44
45  ~IndexWriter();
46
47 private:
48  bool AddingKeyAllowed(IndexedDBBackingStore* store,
49                        IndexedDBBackingStore::Transaction* transaction,
50                        int64 database_id,
51                        int64 object_store_id,
52                        int64 index_id,
53                        const IndexedDBKey& index_key,
54                        const IndexedDBKey& primary_key,
55                        bool* allowed) const WARN_UNUSED_RESULT;
56
57  const IndexedDBIndexMetadata index_metadata_;
58  IndexedDBDatabase::IndexKeys index_keys_;
59
60  DISALLOW_COPY_AND_ASSIGN(IndexWriter);
61};
62
63bool MakeIndexWriters(
64    IndexedDBTransaction* transaction,
65    IndexedDBBackingStore* store,
66    int64 database_id,
67    const IndexedDBObjectStoreMetadata& metadata,
68    const IndexedDBKey& primary_key,
69    bool key_was_generated,
70    const std::vector<IndexedDBDatabase::IndexKeys>& index_keys,
71    ScopedVector<IndexWriter>* index_writers,
72    base::string16* error_message,
73    bool* completed) WARN_UNUSED_RESULT;
74
75}  // namespace content
76
77#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_INDEX_WRITER_H_
78