Loading JDO in a web service endpoint

I have a web service endpoint (Java class exposed as a web service) I'm developing in NW04-sp9, and I'm having trouble getting access to JDO in my web service. I have an object class I'd like to persist using JDO, and I've developed them and run the build helper utility to make them persistable. I believe that this works, because I can look at the .class file in a text editor and see references to javax/jdo/spi/PersistenceCapable.
In my WSE, I try to get the default PersistenceManagerFactory doing a JNDI lookup with:
_pmf=(PersistenceManagerFactory)ctx.lookup("java:comp/env/jdo/defaultPMF");
which fails with a NamingException. Based on another forum posting, I tried:
_pmf=(PersistenceManagerFactory)ctx.lookup("deployedAdapters/jdo/defaultPMF/shareable/jdo/defaultPMF");
Which actually seems to work, but when I do this, I get a NoClassDefFoundError on javax/jdo/PersistenceManagerFactory from the web service endpoint.
I have added the com.sap.jdo application to my WSE's application-j2ee-engine.xml file, as described in the JDO chapter of the NW04 documentation.
Any clues what I'm missing?
Thanks,
- Bill

>
> I will check if it is possible to declare resource
> references for web services and tell you.
>
Thanks very much
>
> By the way, I have just found out that one can lookup
> JCA connection factories in the global JNDI context
> without having to declare resource references. I
> don't like this. In my opinion, applications should
> never access the global JNDI context directly, but
> only the local java:comp/env context.
>
> You can find the JDO PMF at the following location in
> the global JNDI context:
>
> deployedAdapters/jdo/defaultPMF/shareable/jdo/default
> PMF
>
I did this (see my initial post), and I agree that it's a bad idea. I didn't have much choice, though When I did this, and I tried to cast the returned object to a PersistenceManagerFactory, I received a NoClassDefFoundError, which led me to believe that the JDO classes were not loaded into the web service container. This is what led me down the resource reference path.
>
> I don't know when this deployedAdapters directory was
> introduced, but I can imagine why. Most likely, there
> are runtime environments like Web Dynpro or Web
> Services where one needs to access JCA adapters, but
> where resource references are not available.
>
Thanks again,
- Bill

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