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// Copyright 2014 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_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTION_H_
#define COMPONENTS_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTION_H_
#include <stddef.h>
#include "components/sync/base/syncer_error.h"
#include "components/sync/engine_impl/cycle/status_controller.h"
#include "components/sync/protocol/sync.pb.h"
namespace syncer {
class StatusController;
// This class represents a set of items belonging to a particular data type that
// have been selected from a CommitContributor and prepared for commit.
//
// This class handles the bookkeeping related to the commit of these items.
class CommitContribution {
public:
CommitContribution();
virtual ~CommitContribution() = 0;
// Serialize this contribution's entries to the given commit request |msg|.
//
// This function is not const. It may update some state in this contribution
// that will be used when processing the associated commit response. This
// function should not be called more than once.
virtual void AddToCommitMessage(sync_pb::ClientToServerMessage* msg) = 0;
// Updates this contribution's contents in accordance with the provided
// |response|.
//
// It is not valid to call this function unless AddToCommitMessage() was
// called earlier. This function should not be called more than once.
virtual SyncerError ProcessCommitResponse(
const sync_pb::ClientToServerResponse& response,
StatusController* status) = 0;
// Cleans up any temproary state associated with the commit. Must be called
// before destruction.
virtual void CleanUp() = 0;
// Returns the number of entries included in this contribution.
virtual size_t GetNumEntries() const = 0;
};
} // namespace syncer
#endif // COMPONENTS_SYNC_ENGINE_IMPL_COMMIT_CONTRIBUTION_H_
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