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// Copyright 2016 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_MODEL_IMPL_PASSTHROUGH_METADATA_CHANGE_LIST_H_
#define COMPONENTS_SYNC_MODEL_IMPL_PASSTHROUGH_METADATA_CHANGE_LIST_H_
#include <string>
#include "components/sync/model/metadata_change_list.h"
#include "components/sync/model/model_type_store.h"
namespace syncer {
// A thin wrapper around ModelTypeStore and WriteBatch to implement the
// MetadataChangeList interface. This class should never outlive any of the
// delegate objects it calls.
class PassthroughMetadataChangeList : public MetadataChangeList {
public:
PassthroughMetadataChangeList(ModelTypeStore* store,
ModelTypeStore::WriteBatch* batch);
// DataBatch MetadataChangeList.
void UpdateModelTypeState(
const sync_pb::ModelTypeState& model_type_state) override;
void ClearModelTypeState() override;
void UpdateMetadata(const std::string& storage_key,
const sync_pb::EntityMetadata& metadata) override;
void ClearMetadata(const std::string& storage_key) override;
private:
// Non owning references.
ModelTypeStore* store_;
ModelTypeStore::WriteBatch* batch_;
};
} // namespace syncer
#endif // COMPONENTS_SYNC_MODEL_IMPL_PASSTHROUGH_METADATA_CHANGE_LIST_H_
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