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