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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file defines the "sync API", an interface to the syncer | 5 // This file defines the "sync API", an interface to the syncer |
6 // backend that exposes (1) the core functionality of maintaining a consistent | 6 // backend that exposes (1) the core functionality of maintaining a consistent |
7 // local snapshot of a hierarchical object set; (2) a means to transactionally | 7 // local snapshot of a hierarchical object set; (2) a means to transactionally |
8 // access and modify those objects; (3) a means to control client/server | 8 // access and modify those objects; (3) a means to control client/server |
9 // synchronization tasks, namely: pushing local object modifications to a | 9 // synchronization tasks, namely: pushing local object modifications to a |
10 // server, pulling nonlocal object modifications from a server to this client, | 10 // server, pulling nonlocal object modifications from a server to this client, |
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146 // will return FALSE. | 146 // will return FALSE. |
147 virtual bool InitByClientTagLookup(syncable::ModelType model_type, | 147 virtual bool InitByClientTagLookup(syncable::ModelType model_type, |
148 const std::string& tag) = 0; | 148 const std::string& tag) = 0; |
149 | 149 |
150 // Each object is identified by a 64-bit id (internally, the syncable | 150 // Each object is identified by a 64-bit id (internally, the syncable |
151 // metahandle). These ids are strictly local handles. They will persist | 151 // metahandle). These ids are strictly local handles. They will persist |
152 // on this client, but the same object on a different client may have a | 152 // on this client, but the same object on a different client may have a |
153 // different ID value. | 153 // different ID value. |
154 virtual int64 GetId() const; | 154 virtual int64 GetId() const; |
155 | 155 |
| 156 // Returns the modification time of the object (in TimeTicks internal format). |
| 157 int64 GetModificationTime() const; |
| 158 |
156 // Nodes are hierarchically arranged into a single-rooted tree. | 159 // Nodes are hierarchically arranged into a single-rooted tree. |
157 // InitByRootLookup on ReadNode allows access to the root. GetParentId is | 160 // InitByRootLookup on ReadNode allows access to the root. GetParentId is |
158 // how you find a node's parent. | 161 // how you find a node's parent. |
159 int64 GetParentId() const; | 162 int64 GetParentId() const; |
160 | 163 |
161 // Nodes are either folders or not. This corresponds to the IS_DIR property | 164 // Nodes are either folders or not. This corresponds to the IS_DIR property |
162 // of syncable::Entry. | 165 // of syncable::Entry. |
163 bool GetIsFolder() const; | 166 bool GetIsFolder() const; |
164 | 167 |
165 // Returns the title of the object. | 168 // Returns the title of the object. |
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985 // This allows actual HttpPostProvider subclass implementations to be | 988 // This allows actual HttpPostProvider subclass implementations to be |
986 // reference counted, which is useful if a particular implementation uses | 989 // reference counted, which is useful if a particular implementation uses |
987 // multiple threads to serve network requests. | 990 // multiple threads to serve network requests. |
988 virtual void Destroy(HttpPostProviderInterface* http) = 0; | 991 virtual void Destroy(HttpPostProviderInterface* http) = 0; |
989 virtual ~HttpPostProviderFactory() { } | 992 virtual ~HttpPostProviderFactory() { } |
990 }; | 993 }; |
991 | 994 |
992 } // namespace sync_api | 995 } // namespace sync_api |
993 | 996 |
994 #endif // CHROME_BROWSER_SYNC_ENGINE_SYNCAPI_H_ | 997 #endif // CHROME_BROWSER_SYNC_ENGINE_SYNCAPI_H_ |
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