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Side by Side Diff: sync/api/syncable_service.h

Issue 1002263005: [Sync] Introduce AttachmentStoreForSync class (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 9 months ago
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1 // Copyright 2012 The Chromium Authors. All rights reserved. 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 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 #ifndef SYNC_API_SYNCABLE_SERVICE_H_ 5 #ifndef SYNC_API_SYNCABLE_SERVICE_H_
6 #define SYNC_API_SYNCABLE_SERVICE_H_ 6 #define SYNC_API_SYNCABLE_SERVICE_H_
7 7
8 #include <vector> 8 #include <vector>
9 9
10 #include "base/callback.h" 10 #include "base/callback.h"
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61 // SyncChangeProcessor interface. 61 // SyncChangeProcessor interface.
62 // Process a list of new SyncChanges and update the local data as necessary. 62 // Process a list of new SyncChanges and update the local data as necessary.
63 // Returns: A default SyncError (IsSet() == false) if no errors were 63 // Returns: A default SyncError (IsSet() == false) if no errors were
64 // encountered, and a filled SyncError (IsSet() == true) 64 // encountered, and a filled SyncError (IsSet() == true)
65 // otherwise. 65 // otherwise.
66 SyncError ProcessSyncChanges(const tracked_objects::Location& from_here, 66 SyncError ProcessSyncChanges(const tracked_objects::Location& from_here,
67 const SyncChangeList& change_list) override = 0; 67 const SyncChangeList& change_list) override = 0;
68 68
69 // Returns AttachmentStore for use by sync when uploading or downloading 69 // Returns AttachmentStore for use by sync when uploading or downloading
70 // attachments. 70 // attachments.
71 // GetAttachmentStore is called right before MergeDataAndStartSyncing. If at 71 // GetAttachmentStoreForSync is called right before MergeDataAndStartSyncing.
72 // that time GetAttachmentStore returns NULL then datatype is considered not 72 // If at that time GetAttachmentStoreForSync returns NULL then datatype is
73 // using attachments and all attempts to upload/download attachments will 73 // considered not using attachments and all attempts to upload/download
74 // fail. Default implementation returns NULL. Datatype that uses sync 74 // attachments will fail. Default implementation returns NULL. Datatype that
75 // attachments should create attachment store, implement GetAttachmentStore 75 // uses sync attachments should create attachment store, implement
76 // to return result of AttachmentStore::CreateAttachmentStoreForSync() from 76 // GetAttachmentStoreForSync to return result of
77 // attachment store object. 77 // AttachmentStore::CreateAttachmentStoreForSync() from attachment store
78 virtual scoped_ptr<AttachmentStore> GetAttachmentStoreForSync(); 78 // object.
79 virtual scoped_ptr<AttachmentStoreForSync> GetAttachmentStoreForSync();
79 80
80 // Called by sync to provide AttachmentService to be used to download 81 // Called by sync to provide AttachmentService to be used to download
81 // attachments. 82 // attachments.
82 // SetAttachmentService is called after GetAttachmentStore and right before 83 // SetAttachmentService is called after GetAttachmentStore and right before
83 // MergeDataAndStartSyncing and only if GetAttachmentStore has returned a 84 // MergeDataAndStartSyncing and only if GetAttachmentStore has returned a
84 // non-NULL store instance. Default implementation does nothing. 85 // non-NULL store instance. Default implementation does nothing.
85 // Datatype that uses attachments must take ownerhip of the provided 86 // Datatype that uses attachments must take ownerhip of the provided
86 // AttachmentService instance. 87 // AttachmentService instance.
87 virtual void SetAttachmentService( 88 virtual void SetAttachmentService(
88 scoped_ptr<AttachmentService> attachment_service); 89 scoped_ptr<AttachmentService> attachment_service);
89 90
90 protected: 91 protected:
91 ~SyncableService() override; 92 ~SyncableService() override;
92 }; 93 };
93 94
94 } // namespace syncer 95 } // namespace syncer
95 96
96 #endif // SYNC_API_SYNCABLE_SERVICE_H_ 97 #endif // SYNC_API_SYNCABLE_SERVICE_H_
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