| Re: [eclipselink-users] JPA CustomSequencing - uuid |
The issue is the example does not have a default constructor in the UUIDSequence, but all SessionCustomizers requre this. I updated the example. In general it would probably be better to define the SessionCustomizer and Sequence object as separate classes. amerigo5 wrote: > > Anyone been able to make this work: > http://wiki.eclipse.org/EclipseLink/Examples/JPA/CustomSequencing > > I've followed the instruction in the above link but I am getting this > error: > > Exception [EclipseLink-28014] (Eclipse Persistence Services - 1.0.1 (Build > 20080905)): org.eclipse.persistence.exceptions.EntityManagerSetupException > Exception Description: Exception was thrown while processing property > [eclipselink.session.customizer] with value > [eclipselink.example.UUIDSequence]. > Internal Exception: java.lang.InstantiationException: > eclipselink.example.UUIDSequence > at > org.eclipse.persistence.exceptions.EntityManagerSetupException.failedWhileProcessingProperty(EntityManagerSetupException.java:178) > at > org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.processSessionCustomizer(EntityManagerSetupImpl.java:1222) > at > org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.updateServerSession(EntityManagerSetupImpl.java:1198) > at > org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:237) > at > org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:69) > at > org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:118) > at > org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:112) > at > org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:100) > > Am I missing something here? Thanks. > ----- --- http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland http://www.eclipse.org/eclipselink/ EclipseLink , http://www.oracle.com/technology/products/ias/toplink/ TopLink Wiki: http://wiki.eclipse.org/EclipseLink EclipseLink , http://wiki.oracle.com/page/TopLink TopLink Forums: http://forums.oracle.com/forums/forum.jspa?forumID=48 TopLink , http://www.nabble.com/EclipseLink-f26430.html EclipseLink Book: http://en.wikibooks.org/wiki/Java_Persistence Java Persistence -- View this message in context: http://www.nabble.com/JPA-CustomSequencing---uuid-tp19850500p19857592.html Sent from the EclipseLink - Users mailing list archive at Nabble.com.