public void onFire(W window, Timers timers, StateAccessor<?> state) throws Exception {
// shouldFire should be false.
// However it is too expensive to assert.
FinishedTriggersBitSet finishedSet = readFinishedBits(state.access(FINISHED_BITS_TAG)).copy();
TriggerStateMachine.TriggerContext context =
contextFactory.base(window, timers, rootTrigger, finishedSet);
rootTrigger.invokeOnFire(context);
persistFinishedSet(state, finishedSet);
}
