Hello, as someone who previously used only plain tomcat I finally decided to let go of old principles and start using parts of EJB that looks promising.
I am very quite accustomed to CDI and I must say the syntax I've seen in most examples so far is confusing and for the most part not so pretty. Anyways I would just like to clear out some fundamentals to see if I got this right. *What I want: *Message Driven Beans are my main reason for wanting in. My interpretation is that I can get a pool with MDB instances consuming messages asynchronously with a transactional nature. It's sounds like something that could scale out well as a Middleware and I need just that. *How I tried it (based of tomee examples): * * * https://gist.github.com/karlkilden/7141469 <---- My MDB https://gist.github.com/karlkilden/7141488 <----- My Example Msg Producer The following are my questions: 1. Does it look "right"? 2. Must my producer use name = "some name" for the @Resource injection of the queue and my @MessageDriven have that good awful @ActivationConfigProperty to map them together? 3. Can use a MDB with just a @MessageDriven (since no values seems mandatory)? I tried that but it didn't work so It confused me. 4. I Inject a ConnectionFactory with @Resource. Can I inject it with @Inject? Why not @Inject the session directly? Can I fix it with a CDI producer? Any good resource for some more fundamentals and updated for EE7 (or at least EE6)? For example I don't understand what's supposed to go in ejb-jar.xml and tomee.xml. I don't get the concept of "mappedBy". Finally, When I run my example it looks right and my loggers behaves as if it got the message but in the log i get the following: okt 24, 2013 7:08:57 EM org.apache.geronimo.connector.work.WorkerContext run INFO: Removing non-required WorkContextHandler with no context: org.apache.geronimo.connector.work.TransactionContextHandler@6df8723c okt 24, 2013 7:08:57 EM org.apache.geronimo.connector.work.WorkerContext run INFO: Removing non-required WorkContextHandler with no context: org.apache.openejb.core.security.SecurityContextHandler@1d643ec6 okt 24, 2013 7:08:57 EM org.apache.geronimo.connector.work.WorkerContext run INFO: Removing non-required WorkContextHandler with no context: org.apache.geronimo.connector.work.HintsContextHandler@41561668 I don't understand what that means. However very few libraries log frequent happy flows so It has me concerned... Thanks for reading, cheers
