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// Copyright 2018 The Chromium 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 COMPONENTS_DOWNLOAD_DATABASE_DOWNLOAD_DB_H_
#define COMPONENTS_DOWNLOAD_DATABASE_DOWNLOAD_DB_H_
#include <memory>
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/optional.h"
#include "components/download/database/download_namespace.h"
namespace download {
struct DownloadDBEntry;
// A backing storage for persisting DownloadDBEntry objects.
class DownloadDB {
public:
using LoadEntriesCallback = base::OnceCallback<void(
bool success,
std::unique_ptr<std::vector<DownloadDBEntry>> entries)>;
using DownloadDBCallback = base::OnceCallback<void(bool success)>;
DownloadDB();
virtual ~DownloadDB();
// Initializes this db asynchronously, callback will be run on completion.
virtual void Initialize(DownloadDBCallback callback);
// Adds or updates |entry| in the storage.
virtual void AddOrReplace(const DownloadDBEntry& entry);
// Adds or updates multiple entries in the storage.
virtual void AddOrReplaceEntries(const std::vector<DownloadDBEntry>& entry,
DownloadDBCallback callback);
// Retrieves all entries with the given |download_namespace|.
virtual void LoadEntries(LoadEntriesCallback callback);
// Removes the Entry associated with |guid| from the storage.
virtual void Remove(const std::string& guid);
};
} // namespace download
#endif // COMPONENTS_DOWNLOAD_DATABASE_DOWNLOAD_DB_H_
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