Hi Kevin, Thanks for taking interest despite this being a Websphere question. Here is the information that might help:
1. Yes am using the EJB3 featurepack. My server is at version 6.1.0.17 with EJB and Webservices FP installed. 2. The code snippet Persistence.createEntityManager() works on stand-alone even with the jar tags(but fails in the container). 3. I am using the openJPA shipped with Websphere. Having given you the above it looks from your answer that I have erred by not stating my question properly. The issue is, I don't know what name is used to bind the factory and the manager. So the issue is not that I'm not able to lookup but that I don't know the JNDI name to look up and so haven't even tried it. Somehow, I did not find any documentation on the Websphere sites or google. Also on similar lines, I would like to see some documentation on how to override the default openJPA shipped with WAS because I want to be able to use the latest version but the one being picked up by the classloader is always the 1.0 version. Thanks in advance. Kevin Sutter wrote: > > Hi devu213, > Just to clarify... Are you using the EJB3 Feature Pack on top of > WebSphere > v6.1. Are you using the version of OpenJPA that ships with the Feature > Pack, or something newer? It sounds like you are using container-managed > persistence (ie. the injection support), so it sounds like you are using > the > EJB3 Feature Pack. But, I just want to make sure. > > With the EJB3 Feature Pack, the JNDI lookup of an EntityManager should > work > as well as the injection support. You mention that you are getting a SAX > parser error with your persistence.xml file. Do you get any parsing > errors > when running OpenJPA standalone? Or, is all of your testing within a > container? Can you provide more details on the specific parsing errors > you > are getting? > > You should also be able to use application-managed persistence within the > Container. > > Off the top of my head, I'm not aware of any problems with what you are > attempting. Unfortunately, I can't highlight anything you're doing > incorrectly. If you can provide some additional details, maybe we can > help > get you running. > > FYI... Just a reminder. This forum is for questions and issues specific > to > OpenJPA. Since some of us are intimate with WebSphere, we attempt to help > with related WebSphere questions. In this particular case, it sounds like > you might be hitting a problem with the EJB Container within WebSphere. > We > can help with the triage of this case, but we won't be able to resolve the > problem with OpenJPA (if it turns out to be a problem with the Container). > > Thanks, > Kevin > > On Wed, Jan 7, 2009 at 2:40 AM, devu213 <[email protected]> wrote: > >> >> Hi, >> >> I need to lookup an entitymanager using JNDI on websphere 6.1. My >> persistence.xml is configured to use JPA. Although I use injection (which >> works) in almost all cases, I have a case where I would like the use of >> entitymanager in a POJO and therefore would like to get it from JNDI >> directly. >> >> The case is I have a cache which should be initialized with values from >> the >> database the first time it is accessed. The cache class is a POJO class. >> >> I don't seem to find any documentation regarding this. Is this a >> websphere >> limitation ? Also, currently this class is trying to create a factory of >> its >> own within the container using >> Persistence.createEntityManagerFactory(unitname) but that fails as for >> some >> reason a SAX exception is thrown during parsing Persistence.xml file at >> the >> point where it tries to load the jar files containing the various entity >> classes. >> >> So my second question is, is there some sort of restriction on the use of >> Persistence.createEntityManager() inside the container? >> >> Have uploaded the class as well as the persistence.xml file. >> http://n2.nabble.com/file/n2121433/ParamValuesCache.java >> ParamValuesCache.java http://n2.nabble.com/file/n2121433/persistence.xml >> persistence.xml >> -- >> View this message in context: >> http://n2.nabble.com/Entitymanager-lookup-using-JNDI-on-webshpere-tp2121433p2121433.html >> Sent from the OpenJPA Users mailing list archive at Nabble.com. >> >> > > -- View this message in context: http://n2.nabble.com/Entitymanager-lookup-using-JNDI-on-webshpere-tp2121433p2137356.html Sent from the OpenJPA Users mailing list archive at Nabble.com.
