content/browser/indexed_db/indexed_db_index_writer.h

   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
  18 namespace content {
  19
  20 class IndexedDBTransaction;
  21 struct IndexedDBObjectStoreMetadata;
  22
  23 class 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
  63 bool 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_