I was mistaken: I thought there was a way to access which points had triggered the context update, but I see that I was incorrect.
To solve this, I would do the following:
Initialize:
Create a meta point that is of type Numeric.
Write a script, "return 0;" or use your method to initialize, return "p.past(YEAR,1).sum;"
Run the script once or twice, so that the value of zero is recorded for the meta point. (use cron "0/1 * * * * ? *" to execute it every second it is enabled and record a value)
Configure:
Add the point you wish to aggregate to the context, call "p"
Add the meta point itself to the context, call "m"
Write a script, "return m.value + p.past(MINUTE,1).sum;"
Have the meta point run on a Cron pattern, perhaps "0 * * * * ? *" for every minute
Enable the point.
If one minute is not good enough time resolution, you can modify it to be .past(SECOND, 15) and modify the Cron pattern to be "0/15 * * * * ? *"
So long as the number you choose in place of "15" is a factor of 60 (1,2,3,4,5,6,10,12,15,20,30,60) you can use it in both places and get uniform data.
