Seam管理的事务操作方法
Seam建议在有状态会话Bean中使用扩展持久化上下文，以便拥有Seam管理的持久性。
我不清楚上述建议是否对我们希望拥有Seam管理的交易的方式产生任何影响。这是因为我们的架构不同。我们在无状态EJB中具有以下持久性上下文：
@Stateless
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class CrudServiceBean implements CrudService {
@PersistenceContext(type = PersistenceContextType.TRANSACTION)
private EntityManager em;
...
}
没有找到相关结果
已邀请:
1 个回复
痴浪墨
@Name("nonEjbComponent") public class NonEjbComponent { private @In DaoEjbComponent daoEjbComponent; private @In OtherDaoEjbComponent otherDaoEjbComponent; private @In AnotherDaoEjbComponent anotherDaoEjbComponent; private @In UserTransaction userTransation; public void wrapperAllOfThem() { userTransation.begin(); daoEjbComponent.save(someEntity); otherDaoEjbComponent.update(otherEntity); anotherDaoEjbComponent.delete(anotherEntity); userTransation.commit(); } }@Stateless @TransactionAttribute(TransactionAttributeType.REQUIRED) @Name("wrapperStateless") public class WrapperStatelessImpl implements WrapperStateless { private @In DaoEjbComponent daoEjbComponent; private @In OtherDaoEjbComponent otherDaoEjbComponent; private @In AnotherDaoEjbComponent anotherDaoEjbComponent; public void wrapperAllOfThem() { daoEjbComponent.save(someEntity); otherDaoEjbComponent.update(otherEntity); anotherDaoEjbComponent.delete(anotherEntity); } }@Name("nonEjbComponent") public class NonEjbComponent { private @In WrapperStateless wrapperStateless; public void wrapperAllOfThem() { wrapperStateless.wrapperAllOfThem(); } }