content/browser/indexed_db/leveldb/leveldb_comparator.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_COMPARATOR_H_
   6 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_COMPARATOR_H_
   7
   8 #include "base/strings/string_piece.h"
   9
  10 namespace content {
  11
  12 class LevelDBComparator {
  13  public:
  14   virtual ~LevelDBComparator() {}
  15
  16   virtual int Compare(const base::StringPiece& a,
  17                       const base::StringPiece& b) const = 0;
  18   virtual const char* Name() const = 0;
  19 };
  20
  21 }  // namespace content
  22
  23 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_COMPARATOR_H_