java - What's the most effective way to execute a task some distant time in the future on App Engine? -

java - What's the most effective way to execute a task some distant time in the future on App Engine? -

i have application on app engine consuming data. after parsing data, know needs execute in period of time - perchance not number of hours or weeks.

what best way execute piece of code after arbitrary amount of time on app engine?

i figured using countdown millis or etamillis taskqueue work, haven't seen evidence of doing same thing, such long time frames.

is best approach, or there improve way?

if able persist object in datastore of relevant info future processing (including when processing object's info should begin), have cron job periodically query datastore date/time range filter , trigger processing of above objects @ appropriate time.

java google-app-engine scheduled-tasks scheduling