Hi, We are using openjpa-0.9.6-incubating,we have situation need to work with sequence-generator in orm file. facing the problem in persisting data using sequence generator. How to resolve this without using a sequence generator in mapped-superclass. Exception in thread "main" org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is <4|true|0.9.6-incubating> org.apache.openjpa.persistence.ArgumentException: Superclass field "java.lang.Object.id" is mapped in the metadata for subclass "com.abc.xyz.mno.Header", but is not a persistent field. Caused by: <4|true|0.9.6-incubating> org.apache.openjpa.persistence.ArgumentException: Superclass field "java.lang.Object.id" is mapped in the metadata for subclass "com.abc.xyz.mno.Header", but is not a persistent field. at org.apache.openjpa.meta.ClassMetaData.getSuperclassField(ClassMetaData.java:894) at org.apache.openjpa.meta.ClassMetaData.resolveDefinedSuperclassFields(ClassMetaData.java:1186) at org.apache.openjpa.meta.ClassMetaData.defineSuperclassFields(ClassMetaData.java:1162) at org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRepository.java:306) at org.apache.openjpa.meta.MetaDataRepository.preMapping(MetaDataRepository.java:600) at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:487) at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:283) at org.apache.openjpa.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:271) at org.apache.openjpa.jdbc.meta.MappingTool.getMapping(MappingTool.java:660) at org.apache.openjpa.jdbc.meta.MappingTool.buildSchema(MappingTool.java:732) at org.apache.openjpa.jdbc.meta.MappingTool.run(MappingTool.java:630) at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:161) at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.newBrokerImpl(JDBCBrokerFactory.java:127) at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:164) at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:139) at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:187) at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:140) at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:52) at org.springframework.orm.jpa.JpaTransactionManager.createEntityManagerForTransaction(JpaTransactionManager.java:378) at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:302) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:349) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:255) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:102) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210) at $Proxy15.save(Unknown Source) at com.abc.xyz.xxx.repxxx.delegate.RepxxxxxDelegateImpl.schedule(RepxxxxxDelegateImpl.java:114) at com.abc.xyz.xxx.repxxx.RepxxxxxxImpl.schedule(RepxxxxImpl.java:61) at dao.execute.Repxxxxxxxx.main(Repxxxxxxx.java:200)
Could you share any samples available for persisting data uses sequence-generator of database and foreigkey constraint with may-to- one mapping. Thanks in advance for your help. Regards Saidulu --------------------------------- Check out what you're missing if you're not on Yahoo! Messenger