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1 // Copyright 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef SYNC_API_SYNC_MERGE_RESULT_H_ | |
6 #define SYNC_API_SYNC_MERGE_RESULT_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include "sync/api/sync_error.h" | |
11 #include "sync/base/sync_export.h" | |
12 #include "sync/internal_api/public/base/model_type.h" | |
13 | |
14 namespace syncer { | |
15 | |
16 // A model-type-specific view of a sync merge. This class encapsulates the | |
17 // state before and after the merge as well as the deltas and any error that | |
18 // occurred. | |
19 // Note: This class only tracks one side of the merge. In other words, if built | |
20 // by the local SyncableService, all values correspond to the local state before | |
21 // and after merging, and the delta's applied to that state. Sync's change | |
22 // processor will create a separate merge result. | |
23 class SYNC_EXPORT SyncMergeResult { | |
24 public: | |
25 // Initialize an empty merge result for model type |type|. | |
26 explicit SyncMergeResult(ModelType type); | |
27 SyncMergeResult(const SyncMergeResult& other); | |
28 ~SyncMergeResult(); | |
29 | |
30 // Default copy and assign welcome. | |
31 | |
32 // Setters. | |
33 // Note: if |error.IsSet()| is true, |error.type()| must match model_type_ | |
34 void set_error(SyncError error); | |
35 void set_num_items_before_association(int num_items_before_association); | |
36 void set_num_items_after_association(int num_items_after_association); | |
37 void set_num_items_added(int num_items_added); | |
38 void set_num_items_deleted(int num_items_deleted); | |
39 void set_num_items_modified(int num_items_modified); | |
40 void set_pre_association_version(int64_t version); | |
41 | |
42 // Getters. | |
43 ModelType model_type() const; | |
44 SyncError error() const; | |
45 int num_items_before_association() const; | |
46 int num_items_after_association() const; | |
47 int num_items_added() const; | |
48 int num_items_deleted() const; | |
49 int num_items_modified() const; | |
50 int64_t pre_association_version() const; | |
51 | |
52 private: | |
53 // Make |this| into a copy of |other|. | |
54 void CopyFrom(const SyncMergeResult& other); | |
55 | |
56 // The datatype that was associated. | |
57 ModelType model_type_; | |
58 | |
59 // The error encountered during association. Unset if no error was | |
60 // encountered. | |
61 SyncError error_; | |
62 | |
63 // The state of the world before association. | |
64 int num_items_before_association_; | |
65 | |
66 // The state of the world after association. | |
67 int num_items_after_association_; | |
68 | |
69 // The changes that took place during association. In a correctly working | |
70 // system these should be the deltas between before and after. | |
71 int num_items_added_; | |
72 int num_items_deleted_; | |
73 int num_items_modified_; | |
74 | |
75 // Version of model before association. | |
76 int64_t pre_association_version_; | |
77 }; | |
78 | |
79 } // namespace syncer | |
80 | |
81 #endif // SYNC_API_SYNC_MERGE_RESULT_H_ | |
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