Possible to get CMP for EJB entities without using session beans?

Question

Newbie to EJB, exploring CMP and trying to figure out the angles...

I'm using Weblogic 10.3. I've created entities, utilized them from a session bean via JPA and called the session bean from a command line app. This gave me CMP. When I tried to use the entities directly from a command line app via JPA without using the session bean, I didn't get CMP. I had to manually add the transaction code myself. So...

Is it possible:

1. for Weblogic to host the entities directly?
2. for a command line app to invoke the entities directly, without going through a session bean?

If so, how? How would I configure this?

I'm trying to understand if it's possible to get CMP by invoking an entity from a command line app or from a Weblogic based JSP.