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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_MODEL_TYPE_CHANGE_PROCESSOR_H_
#define SYNC_API_MODEL_TYPE_CHANGE_PROCESSOR_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "sync/api/entity_data.h"
#include "sync/base/sync_export.h"
#include "sync/internal_api/public/activation_context.h"
namespace syncer {
class SyncError;
} // namespace syncer
namespace syncer_v2 {
class MetadataBatch;
class MetadataChangeList;
// Interface used by the ModelTypeService to inform sync of local
// changes.
class SYNC_EXPORT ModelTypeChangeProcessor {
public:
typedef base::Callback<void(syncer::SyncError, scoped_ptr<ActivationContext>)>
StartCallback;
ModelTypeChangeProcessor();
virtual ~ModelTypeChangeProcessor();
// Inform the processor of a new or updated entity. The |entity_data| param
// does not need to be fully set, but it should at least have specifics and
// non-unique name. The processor will fill in the rest if the service does
// not have a reason to care.
virtual void Put(const std::string& client_tag,
scoped_ptr<EntityData> entity_data,
MetadataChangeList* metadata_change_list) = 0;
// Inform the processor of a deleted entity.
virtual void Delete(const std::string& client_tag,
MetadataChangeList* metadata_change_list) = 0;
// Accept the initial sync metadata loaded by the service. This should be
// called as soon as the metadata is available to the service.
virtual void OnMetadataLoaded(scoped_ptr<MetadataBatch> batch) = 0;
// Called by the DataTypeController to gather additional information needed
// before a CommitQueue object can be created for this model type. Once the
// metadata has been loaded, the info is collected and given to |callback|.
// Once called, this can only be called again if sync is disconnected.
virtual void OnSyncStarting(const StartCallback& callback) = 0;
};
} // namespace syncer_v2
#endif // SYNC_API_MODEL_TYPE_CHANGE_PROCESSOR_H_
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