Hi I run OpenJPA with NetBeans IDE and have a setup now working. Can you paste the contents of your ant script which is associated with the enhancer task and your persistence.xml file please.
Do you have any class which extend other entity classes and do not provide the @Inheritence annotation. David On Tue, 16 Jun 2009 03:55:26 -0700 (PDT) "B.L. Zeebub" <[email protected]> wrote: > > Hi > > I've just spent the last three days wrestling with the enhancer and > I'm now ready to throw the computer out of a fifth floor window. I > spent the first day or so wrestling with error messages trying to > set-up the ant enhancer task in Netbeans 6.5.1/Linux (Debian Lenny). > (Googling for examples brought up many examples that were all > slightly different and none of them actually worked until I got > lucky). I finally got the process to run without falling over. I then > tried to run my first program. Next problem was that when the program > tried to create the EntityManagerFactory the program would crash > messages similair to "Caused by: <openjpa-1.2.1-r752877:753278 fatal > user > error> org.apache.openjpa.persistence.ArgumentException: The type > error> "class > com.mydomain.flashloader.entities.DataIdentifiersPK" has not been > enhanced." > > I've finally resolved that - I used Netbeans create entities from > database facility. Netbeans created a class for every table in the > database and a classPK file for every table that has multi-column > primary keys. However, it only put the table class entities into the > persistance.xml and omitted the classPK files. So I added all the > classPK classes into persistance xml, rebuilt the project and now my > program starts, creates the EntityManagerFactory without crashing. > > However, I'm left with a message during startup "1120 FlashLoaderPU > INFO [main] openjpa.Enhance - Creating subclass for "[<every entity > and entityPK in the database listed here>]" This means that your > application will be less efficient and will consume more memory than > it would if you ran the OpenJPA enhancer. Additionally, lazy loading > will not be available for one-to-one and many-to-one persistent > attributes in types using field access; they will be loaded eagerly > instead." > > So I seem to have spent the last three days going around in a complete > circle. I would be extremely grateful for any pointers as to what on > earth is going on. > > Regards
