tree bf586c74252c3a354189653b6e71b0778ef04913
parent 6fec51cbb310bd1669b69f943c220cda7dc88899
author Chris Westin <cwestin@yahoo.com> 1427239206 -0700
committer Jacques Nadeau <jacques@apache.org> 1427343082 -0700

DRILL-2502: Improve code safety by providing a generic event delivery mechan
This fixes some problems with broken state transitions that happen under
queryManager.cancelExecutingFragments(), which cause recursive entry into
Foreman.moveToState().

EventProcessor
- created
Foreman
- altered to use the EventProcessor for moveToState()