Monday, December 28, 2015

Software Transactional Memory with WildFly-Swarm

A long time ago (not in a Galaxy Far Far Away!) I wrote about the STM implementation we were adding to Narayana. Over the intervening years this implementation was added to Vert.x and even the RaspberryPi made an appearance! Now whilst the implementation has been available in WildFly for many years, we tend not to mention it because, well, it's not Java EE compliant. However, with the advent of WildFly-Swarm things may be about to change.

Sure, when you're looking at using Swarm it's likely that at least initially you'll be coming at a problem from the perspective of Java EE, but the more you look to decompose your application into constituent (micro) services the more chances there are that you'll also start to look at functionality and frameworks that aren't necessarily just about Java EE. As we've mentioned before, STM is compatible with JTA and JTS transactions as well, as long as you understand what it means to mix-and-match them. Therefore, we've added an example of STM usage within WildFly-Swarm, which hopefully will become part of the mainline Swarm examples eventually. Take a look and give us any feedback, either in the Swarm group/IRC/Twitter or the usual Narayana routes.
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