Scheduled executor: poll for result at fix rate and exit if timeout or result valid

Question

Problem: I have a requirement to call a dao method at fix rate say every 10 sec, then I need to check if the result is valid if yes exit, else keep on call

Answer 1

A slightly simpler method, you don't need a separate executor service for the terminator, you could simply push the terminator task into the same executor.

Even simpler. Have PollerTask place it's result in a BlockingQueue. Then have the PollingTaskRunner do a timed poll on that BlockingQueue. Whenever control is returned from the poll call ScheduledFuture.cancel because the task either succeeded or timed out.