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 #include "content/common/content_export.h" 10 #include "third_party/leveldatabase/src/include/leveldb/status.h" 11 12 namespace content { 13 14 class CONTENT_EXPORT LevelDBIterator { 15 public: 16 virtual ~LevelDBIterator() {} 17 virtual bool IsValid() const = 0; 18 virtual leveldb::Status SeekToLast() = 0; 19 virtual leveldb::Status Seek(const base::StringPiece& target) = 0; 20 virtual leveldb::Status Next() = 0; 21 virtual leveldb::Status Prev() = 0; 22 virtual base::StringPiece Key() const = 0; 23 virtual base::StringPiece Value() const = 0; 24 }; 25 26 } // namespace content 27 28 #endif // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_ITERATOR_H_ 29
