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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_ | |
6 #define CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_ | |
7 #pragma once | |
8 | |
9 #include "chrome/browser/sync/internal_api/user_share.h" | |
10 | |
11 #include "sync/util/cryptographer.h" | |
12 | |
13 namespace syncable { | |
14 class BaseTransaction; | |
15 class Directory; | |
16 } | |
17 | |
18 namespace sync_api { | |
19 | |
20 // Sync API's BaseTransaction, ReadTransaction, and WriteTransaction allow for | |
21 // batching of several read and/or write operations. The read and write | |
22 // operations are performed by creating ReadNode and WriteNode instances using | |
23 // the transaction. These transaction classes wrap identically named classes in | |
24 // syncable, and are used in a similar way. Unlike syncable::BaseTransaction, | |
25 // whose construction requires an explicit syncable::Directory, a sync | |
26 // API BaseTransaction is created from a UserShare object. | |
27 class BaseTransaction { | |
28 public: | |
29 // Provide access to the underlying syncable.h objects from BaseNode. | |
30 virtual syncable::BaseTransaction* GetWrappedTrans() const = 0; | |
31 browser_sync::Cryptographer* GetCryptographer() const; | |
32 | |
33 syncable::Directory* GetDirectory() const { | |
34 return directory_; | |
35 } | |
36 | |
37 protected: | |
38 explicit BaseTransaction(UserShare* share); | |
39 virtual ~BaseTransaction(); | |
40 | |
41 BaseTransaction() : directory_(NULL) { } | |
42 | |
43 private: | |
44 syncable::Directory* directory_; | |
45 | |
46 DISALLOW_COPY_AND_ASSIGN(BaseTransaction); | |
47 }; | |
48 | |
49 syncable::ModelTypeSet GetEncryptedTypes( | |
50 const sync_api::BaseTransaction* trans); | |
51 | |
52 } // namespace sync_api | |
53 | |
54 #endif // CHROME_BROWSER_SYNC_INTERNAL_API_BASE_TRANSACTION_H_ | |
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