Transactional manager status codes
| 0 | kUnExist | Object is empty. |
| 1 | kAdeClosed | Closed object |
| 2 | kOpenForWrite | Object was opened for write |
| 3 | kOpenForRead | Object was opened for read |
| 4 | kOpenForMultiple | Object was open for read several times |
| 5 | kErased | Object was erased |
| 6 | kShouldBeErased | Object scheduled for deletion |