content/browser/indexed_db/leveldb/leveldb_iterator_impl.h

   1 // Copyright 2014 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_LEVELDB_LEVELDB_ITERATOR_IMPL_H_
   6 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_IMPL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/browser/indexed_db/leveldb/leveldb_iterator.h"
  10 #include "content/common/content_export.h"
  11 #include "third_party/leveldatabase/src/include/leveldb/iterator.h"
  12
  13 namespace content {
  14
  15 class CONTENT_EXPORT LevelDBIteratorImpl : public content::LevelDBIterator {
  16  public:
  17   ~LevelDBIteratorImpl() override;
  18   bool IsValid() const override;
  19   leveldb::Status SeekToLast() override;
  20   leveldb::Status Seek(const base::StringPiece& target) override;
  21   leveldb::Status Next() override;
  22   leveldb::Status Prev() override;
  23   base::StringPiece Key() const override;
  24   base::StringPiece Value() const override;
  25
  26  protected:
  27   explicit LevelDBIteratorImpl(scoped_ptr<leveldb::Iterator> iterator);
  28
  29  private:
  30   void CheckStatus();
  31
  32   friend class IndexedDBClassFactory;
  33   friend class MockBrowserTestIndexedDBClassFactory;
  34
  35   scoped_ptr<leveldb::Iterator> iterator_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(LevelDBIteratorImpl);
  38 };
  39
  40 }  // namespace content
  41
  42 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_IMPL_H_