CODEWITHSUNDEEP
javajakarta-eedependency-injectionosgicdi
user2022068
user2022068

Reputation:

JavaEE 7: CDI+OSGI - one real example

There are two great technologies OSGI and CDI and I'm newbie in both of them. I use glassfish 4 and when I started to use it I hoped that such great server would provide all I'd learned. Now I need to use both technologies. So what I have in practice:

Bundle1 - servlet as frontcontroller + jsp
Bundle2 - service providing controllers, commands,[models]
Bundle3 - EJB.

I can inject EJB to servlet - that's ok. I can inject service to servlet - that's ok. But I can't do the most necessary thing - I can't inject EJB to my controllers/commands/models etc - here I have to do manual lookup of EJB, but I want to use CDI!

My thoughts: The problem is that I can't create these objects from bundle2 without new!!! Because entry point in osgi bundle is osgi service. Other bundles work with this bundle via its service. So, I must inject my objects to service - however this doesn't work. Here are two possible reasons:

  1. I do something wrong
  2. It's not supported by weld\fighterfish.

If someone sees my mistake in my thoughts please correct me. So the question - can I inject EJB in controllers/commands, provided by service of bundle 2 or it's impossible?

Upvotes: 2

Views: 664

Answers (1)

Christian Schneider
Christian Schneider

Reputation: 19606

Just use stateless session beans for the services in bundle 2. So you can easily inject the EJB.

Upvotes: 1

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