Lunny Xiao 82e08a3364
Refactor notification for indexer (#5111)
* notification for indexer

* use NullNotifier as parent struct
2019-01-17 22:23:22 +08:00
..
2019-01-13 14:06:22 -05:00
2019-01-14 14:15:06 -05:00
2018-11-04 22:20:00 -05:00