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// Copyright (c) 2011 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 CHROME_BROWSER_SYNC_API_SYNCABLE_SERVICE_H_
#define CHROME_BROWSER_SYNC_API_SYNCABLE_SERVICE_H_
#pragma once
#include <vector>
#include "base/compiler_specific.h"
#include "chrome/browser/sync/syncable/model_type.h"
#include "chrome/browser/sync/api/sync_change_processor.h"
#include "chrome/browser/sync/api/sync_data.h"
#include "chrome/browser/sync/api/sync_error.h"
class SyncData;
typedef std::vector<SyncData> SyncDataList;
class SyncableService : public SyncChangeProcessor {
public:
// Informs the service to begin syncing the specified synced datatype |type|.
// The service should then merge |initial_sync_data| into it's local data,
// calling |sync_processor|'s ProcessSyncChanges as necessary to reconcile the
// two. After this, the SyncableService's local data should match the server
// data, and the service should be ready to receive and process any further
// SyncChange's as they occur.
// Returns: A default SyncError (IsSet() == false) if no errors were
// encountered, and a filled SyncError (IsSet() == true)
// otherwise.
virtual SyncError MergeDataAndStartSyncing(
syncable::ModelType type,
const SyncDataList& initial_sync_data,
SyncChangeProcessor* sync_processor) = 0;
// Stop syncing the specified type and reset state.
virtual void StopSyncing(syncable::ModelType type) = 0;
// Fills a list of SyncData from the local data. This should create an up
// to date representation of the SyncableService's view of that datatype, and
// should match/be a subset of the server's view of that datatype.
virtual SyncDataList GetAllSyncData(syncable::ModelType type) const = 0;
// SyncChangeProcessor interface.
// Process a list of new SyncChanges and update the local data as necessary.
// Returns: A default SyncError (IsSet() == false) if no errors were
// encountered, and a filled SyncError (IsSet() == true)
// otherwise.
virtual SyncError ProcessSyncChanges(
const tracked_objects::Location& from_here,
const SyncChangeList& change_list) OVERRIDE = 0;
protected:
virtual ~SyncableService();
};
#endif // CHROME_BROWSER_SYNC_API_SYNCABLE_SERVICE_H_
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