colinws wrote:
Is it possible to have Hibernate persistent classes written with EJB3 annotations used from within EJB2 session beans?
Sure, just do it.
colinws wrote:
The persistent classes will require the EJB3 jar file, but the session beans will require the EJB2 jar file.
How do I get around the mismatch of EJB versions? Is it enough to put the EJB3 jar after the EJB2 one? I assume Hibernate only needs the definitions of the annotations from the EJB3 jar.
The 2 will not clash, since EJB3 will be abckward compatible with EJB2
colinws wrote:
Also, along similar lines, if my session beans return any instances of the annotated classes to a client, then that client also needs the EJB3 jar in its classpath. Is there any way to get around that?
You'll be able to use the description descriptor instead, but I don't really consider the ejb3-ann.jar too much a requirement in the client side, it will be small.