We're evaluating Heroku for our java webapp. We read there's a limitation on incoming socket communication: Heroku, flask, and python sockets?
Does that mean my webapp cannot register for JMS Topics (publish/subscribe pattern)? AFAIK JMS listeners work by listenning on a port (separate from the HTTP port).
And if there is such a limitation, how come I see Heroku addons such as CloudAMQP ... how can they listen to messages? Do they poll instead? Thanks very much.