content/browser/indexed_db/leveldb/leveldb_iterator.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_LEVELDB_LEVELDB_ITERATOR_H_
   6 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_
   7
   8 #include "base/strings/string_piece.h"
   9
  10 namespace content {
  11
  12 class LevelDBIterator {
  13  public:
  14   virtual ~LevelDBIterator() {}
  15   virtual bool IsValid() const = 0;
  16   virtual void SeekToLast() = 0;
  17   virtual void Seek(const base::StringPiece& target) = 0;
  18   virtual void Next() = 0;
  19   virtual void Prev() = 0;
  20   virtual base::StringPiece Key() const = 0;
  21   virtual base::StringPiece Value() const = 0;
  22 };
  23
  24 }  // namespace content
  25
  26 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_