There is nothing special that you need to do. Java EE 5 Tutorial has an example
that uses TableGenerator, but it shouldn't matter much - see
http://java.sun.com/javaee/5/docs/tutorial/doc/PersistenceEJB2.html#wp82561
-marina
saidulu chitipolu wrote:
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
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