[cdi-dev] [JBoss JIRA] (CDI-520) 3.6. Java EE components

Martin Andersson (JIRA) issues at jboss.org
Mon Apr 20 13:31:18 EDT 2015

Martin Andersson created CDI-520:

             Summary: 3.6. Java EE components
                 Key: CDI-520
                 URL: https://issues.jboss.org/browse/CDI-520
             Project: CDI Specification Issues
          Issue Type: Clarification
          Components: Java EE integration
    Affects Versions: 1.1.Final
            Reporter: Martin Andersson

I don't understand this text:

"The instance used by the container to service an invocation of a Java EE component will not be the same instance obtained when using @Inject, instantiated by the container to invoke a producer method, observer method or disposer method, or instantiated by the container to access the value of a producer field."

More specifically, I am trying to understand how we can use CDI to put a scope on {{EntityManager}} whose life cycle is rather undefined by JPA. I see that the specification use an example of a {{@Disposes}} method to close a container-managed entity manager which throw {{IllegalStateException}} in the disposer (!). Anyways, trying to solve this puzzle has led me to the paragraph quoted previously, of which I understand nothing to be honest.

My research about the "CDI managed container-managed entity manager" continues. As of now, the example is flawed and a container-managed entity manager remains open after the disposer method. Anyways, I might open up a separate ticket for that.

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