Hi all, I'm in the process of coding up my trading platform using IB's API in java. My strategy looks at the previous 10 (5 minutes bar) to determine entry. I just can't figure out a way to aggregate the info from reqRealTimeBars (5 seconds interval) to a 5 minute info. I understand I need to collect 60 instances of RealTimeBars callback which I have absolutely no problem in doing, but the problem is... How the heck should I approach in storing until the 5 minute mark hits and make it into one 5 minute "bar"? Much thanks and I hope i did a good job explaining it.