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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // An InvalidationVersionTracker is an interface that handles getting | 5 // An InvalidationVersionTracker is an interface that handles getting |
6 // and setting (persisting) max invalidation versions. | 6 // and setting (persisting) max invalidation versions. |
7 | 7 |
8 #ifndef CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ | 8 #ifndef CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ |
9 #define CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ | 9 #define CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ |
10 | 10 |
11 #include <map> | 11 #include <map> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "chrome/browser/sync/syncable/model_type.h" | 14 #include "sync/syncable/model_type.h" |
15 | 15 |
16 namespace sync_notifier { | 16 namespace sync_notifier { |
17 | 17 |
18 typedef std::map<syncable::ModelType, int64> InvalidationVersionMap; | 18 typedef std::map<syncable::ModelType, int64> InvalidationVersionMap; |
19 | 19 |
20 class InvalidationVersionTracker { | 20 class InvalidationVersionTracker { |
21 public: | 21 public: |
22 InvalidationVersionTracker() {} | 22 InvalidationVersionTracker() {} |
23 | 23 |
24 virtual InvalidationVersionMap GetAllMaxVersions() const = 0; | 24 virtual InvalidationVersionMap GetAllMaxVersions() const = 0; |
25 | 25 |
26 // |max_version| should be strictly greater than any existing max | 26 // |max_version| should be strictly greater than any existing max |
27 // version for |model_type|. | 27 // version for |model_type|. |
28 virtual void SetMaxVersion(syncable::ModelType model_type, | 28 virtual void SetMaxVersion(syncable::ModelType model_type, |
29 int64 max_version) = 0; | 29 int64 max_version) = 0; |
30 | 30 |
31 protected: | 31 protected: |
32 virtual ~InvalidationVersionTracker() {} | 32 virtual ~InvalidationVersionTracker() {} |
33 }; | 33 }; |
34 | 34 |
35 } // namespace sync_notifier | 35 } // namespace sync_notifier |
36 | 36 |
37 #endif // CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ | 37 #endif // CHROME_BROWSER_SYNC_NOTIFIER_INVALIDATION_VERSION_TRACKER_H_ |
38 | 38 |
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