Problems with Enums and Inheritance

[mwoelke]

Hello,

I've a problem with entitybeans that use inheritance and enums. I have a entitybean baseclass A which besides other things contains an enum value.
Derived from that I created another entitybean class B.

If I create an instance of A and persist it using entityManager.persist() it works fine. But if I instanciate B and call entityManager.persist() I get the following exception:

12:15:28,620 WARN [EnumType] Unable to guess enum type, default to INTEGER
java.sql.SQLException: Nicht unterstützte Funktion
 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
 at oracle.jdbc.dbaccess.DBError.throwUnsupportedFeatureSqlException(DBError.java:690)
 at oracle.jdbc.driver.OracleParameterMetaData.getParameterType(OracleParameterMetaData.java:154)
 at org.hibernate.type.EnumType.guessTypeByParameter(EnumType.java:200)
 at org.hibernate.type.EnumType.guessType(EnumType.java:147)
 at org.hibernate.type.EnumType.nullSafeSet(EnumType.java:113)
 at org.hibernate.type.CustomType.nullSafeSet(CustomType.java:145)
 at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1816)
 at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1793)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2049)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2417)
 at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:51)
 at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
 at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:877)
 at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:185)
 at org.jboss.ejb3.entity.ManagedEntityManagerFactory$SessionSynchronization.beforeCompletion(ManagedEntityManagerFactory.java:89)
 at org.jboss.tm.TransactionImpl.doBeforeCompletion(TransactionImpl.java:1473)
 at org.jboss.tm.TransactionImpl.beforePrepare(TransactionImpl.java:1092)
 at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:306)
 at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:162)
 at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:74)
 at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:134)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:61)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:32)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:91)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
 at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:189)
 at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:107)
 at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:69)
 at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:566)
 at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:436)
 at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:247)
 at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:299)
 at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:169)

Am I doing something wrong or did I find a bug.

regards, milan wölke

[mwoelke]

Sorry, I made a mistake analyzing my log files. Even entityclass A does not work without exception. It seems that the problem is connected to the Oracle-Datasource Im using. If I switch to the HSQLDB it works fine.

Regards, Milan Wölke