CMP 1.x with OpenJPA now working!

[Dain Sundstrom]

After a few days of refactoring the Castor CMP container (I love test  
first development), I have a CMP container that supports both Castor  
and OpenJPA.  The new default CMP engine is OpenJPA and the  
configuration is slightly different.  The JPA mapping file placed at  
META-INF/jpa.mapping.xml (name may change), and is a standard JPA  
entity-mappings.xml file.  Alternatively, you should be able to use  
JPA annotations to specify the mappings.  An example jpa.mapping.xml  
file can be found here:

http://svn.apache.org/viewvc/incubator/openejb/trunk/openejb3/itests/ 
openejb-itests-beans/src/main/resources/META-INF/jpa.mapping.xml? 
view=markup&pathrev=482779


One additional change is caused by OpenJPA requiring that entity  
beans be bytecode enhanced.  We currently do not support runtime  
enhancement, so you will have to enhance at build time.  You can find  
an example Maven pom that does build time enhancement here:

http://svn.apache.org/viewvc/incubator/openejb/trunk/openejb3/itests/ 
openejb-itests-beans/pom.xml?view=markup&pathrev=482779


Other than that, your CMP 1.x beans should just work and you have the  
additional power of JPA including JPA managed relationships.

If you have any problems, let me know.  Now I'm going to work on CMP  
2.x support :)

-dain