Using JDO in a portal component.

Hi!
I've tried using JDO in a portal component (DynPage), but it just won't work for me (WAS 6.40).
What I've tried is this:
- Looking up a PersistenceManagerFactory using the name "java:comp/env/jdo/defaultPMF"
This does not work ... I get a NameNotFoundException: Path to object does not exist at java:comp, the whole lookup name is java:comp/env/jdo/defaultPMF
- After reading this forum I tried with the name "deployedAdapters/jdo/defaultPMF/shareable/jdo/defaultPMF" although this is probably not the correct way
This did return a PersistenceManagerFactory object, however I wasn't able to cast to the PersistenceManagerFactory interface that I had. It must have been different versions of the interface - I tried downloading the jdo.jar from Sun and compiling the portal component against that, but still the ClassCastException occured. I used the reflection API to determine that the object returned did in fact implement the interface named javax.jdo.PersistenceManagerFactory. I even tried using the jdo.jar libraries from the server, but to no luck.
So ... my question is: Is JDO not available from a portal component? Must I develop a J2EE application to make it work? If so, I'd rather use Hibernate in my portal components, but it seems stupid when JDO is available?
Thanks,
Thomas

Hi Thomas,
In order to be able to use JDO in a Portal component, you have to add a Private Sharing Reference to the application sap.com/com.sap.jdo. This is a standard application provided with the SAP WebAS Java installation.
For more info on how to do that, please refer to <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/ep/g-i/how%20to%20access%20an%20ejb%20from%20a%20portal%20component.mht">this</a> tutorial -> Accessing the EJB -> New Portal Component -> scroll to the section "Add PrivateSharingReference".
Hope that helps!
Vladimir

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