2009/6/16 David Beer <[email protected]>: > 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
Hi David Thanks for the quick response. I've posted the ant task in my reply to Mike. For info this is from an "out-of-the-box" Netbeans Java Application project - so I haven't been messing with the directory structure or anything. My src/META-INF/persistance.xml is below; <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd";> <persistence-unit name="FlashLoaderPU" transaction-type="RESOURCE_LOCAL"> <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider> <class>com.blackbox.flashloader.entities.EcuDataIdentifiers</class> <class>com.blackbox.flashloader.entities.EcuDataIdentifiersPK</class> <class>com.blackbox.flashloader.entities.IvsEcu</class> <class>com.blackbox.flashloader.entities.IvsEcuPK</class> <class>com.blackbox.flashloader.entities.IvsPartsLink</class> <class>com.blackbox.flashloader.entities.IvsPartsLinkPK</class> <class>com.blackbox.flashloader.entities.Hardware</class> <class>com.blackbox.flashloader.entities.HardwarePK</class> <class>com.blackbox.flashloader.entities.PartsLink</class> <class>com.blackbox.flashloader.entities.PartsLinkPK</class> <class>com.blackbox.flashloader.entities.DataIdentifiers</class> <class>com.blackbox.flashloader.entities.DataIdentifiersPK</class> <class>com.blackbox.flashloader.entities.Model</class> <class>com.blackbox.flashloader.entities.IvsAssembly</class> <class>com.blackbox.flashloader.entities.IvsAssemblyPK</class> <class>com.blackbox.flashloader.entities.IvsSoftware</class> <class>com.blackbox.flashloader.entities.IvsSoftwarePK</class> <class>com.blackbox.flashloader.entities.Ecu</class> <class>com.blackbox.flashloader.entities.EcuPK</class> <class>com.blackbox.flashloader.entities.ServiceRules</class> <class>com.blackbox.flashloader.entities.ServiceRulesPK</class> <class>com.blackbox.flashloader.entities.QualifierRules</class> <class>com.blackbox.flashloader.entities.QualifierRulesPK</class> <class>com.blackbox.flashloader.entities.Swimparts</class> <class>com.blackbox.flashloader.entities.IvsHardware</class> <class>com.blackbox.flashloader.entities.IvsHardwarePK</class> <class>com.blackbox.flashloader.entities.Software</class> <class>com.blackbox.flashloader.entities.SoftwarePK</class> <class>com.blackbox.flashloader.entities.Assembly</class> <class>com.blackbox.flashloader.entities.AssemblyPK</class> <properties> <property name="openjpa.ConnectionPassword" value="password"/> <property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver"/> <property name="openjpa.ConnectionUserName" value="user"/> <property name="openjpa.ConnectionURL" value="jdbc:mysql://localhost:3306/technical"/> <property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(ForeignKeys=true)"/> </properties> </persistence-unit> </persistence> > > 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 > >
