[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - question about transaction

[liuliu]

Hi,

I am working with an old database without transaction, So I add anonymous wrote : @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) to my sessionbean. but i get this exception 
anonymous wrote : EntityManager must be access within a transaction when I persist an object.

If i comment the @TransactionAttribute, the persist works, But i got a anonymous wrote :  javax.transaction.RollbackException after invoke the EJB method.

what should i do to avoid these problems?

thanks in advance

liu

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