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// Copyright 2015 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 SYNC_API_METADATA_BATCH_H_
#define SYNC_API_METADATA_BATCH_H_
#include <map>
#include <string>
#include "sync/base/sync_export.h"
#include "sync/protocol/data_type_state.pb.h"
#include "sync/protocol/entity_metadata.pb.h"
namespace syncer_v2 {
// Map of client tag to EntityMetadata proto.
typedef std::map<std::string, sync_pb::EntityMetadata> EntityMetadataMap;
// Container used to pass sync metadata from services to their processor.
class SYNC_EXPORT MetadataBatch {
public:
MetadataBatch();
virtual ~MetadataBatch();
// Allows the caller to take ownership of the entire metadata map. This is
// done because the caller will probably swap out all the EntityMetadata
// protos from the map for performance reasons.
EntityMetadataMap&& TakeAllMetadata();
// Add |metadata| for |client_tag| to the batch.
void AddMetadata(const std::string& client_tag,
const sync_pb::EntityMetadata& metadata);
// Get the DataTypeState for this batch.
const sync_pb::DataTypeState& GetDataTypeState() const;
// Set the DataTypeState for this batch.
void SetDataTypeState(const sync_pb::DataTypeState& state);
private:
EntityMetadataMap metadata_map_;
sync_pb::DataTypeState state_;
};
} // namespace syncer_v2
#endif // SYNC_API_METADATA_BATCH_H_
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