archivable.h

Go to the documentation of this file.

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_IMPELLER_ARCHIVIST_ARCHIVABLE_H_
#define FLUTTER_IMPELLER_ARCHIVIST_ARCHIVABLE_H_
 
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
 
namespace impeller {
 
struct ArchiveDef {
  const std::string table_name;
  const std::vector<std::string> members;
};
 
class ArchiveLocation;
 
using PrimaryKey = std::optional<int64_t>;
 
//------------------------------------------------------------------------------
/// @brief      Instances of `Archivable`s can be read from and written to a
///             persistent archive.
///
class Archivable {
 public:
  virtual ~Archivable() = default;
 
  virtual PrimaryKey GetPrimaryKey() const = 0;
 
  virtual bool Write(ArchiveLocation& item) const = 0;
 
  virtual bool Read(ArchiveLocation& item) = 0;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_ARCHIVIST_ARCHIVABLE_H_