From: Zhang JiHui <zhangjh_at_cn.fujitsu.com>
Date: Tue, 01 Jul 2008 19:05:35 +0900

Hi,

The following code was executed in a statful CMT session bean in
bussiness method:
{{{
EntityManagerFactory emf = Persistence.createEntityManagerFactory("oracle");
EntityManager em = emf.createEntityManager();
Order personSel4 = (Order)em.find(Order.class, 2);
personSel4.setShipmentInfo("testbbb");
em.persist(personSel4);
em.close();
}}}

The data did not be written the database, and "No transaction is
currently active"
was reported when I invoked the em.flush(). In the CMT, the JTA is the
default
transacion. I wonder why "there was no active transaction".

But the data was written to the database when I create the
EntityManagerFactory
by injection:
{{{
@PersistenceUnit
private EntityManagerFactory emf;
}}}

Thanks very much if anyone can explain it.

Thanks,
henrry_china

-- 
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Zhang Jihui
Development Dept.I
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
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