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From "Prabhat (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OPENJPA-2155) Transaction Management in multiple Entities in one transaction
Date Fri, 16 Mar 2012 15:09:38 GMT
Transaction Management in multiple Entities in one transaction
--------------------------------------------------------------

                 Key: OPENJPA-2155
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2155
             Project: OpenJPA
          Issue Type: Question
          Components: jpa
    Affects Versions: 2.1.1
         Environment: WebSphere Application Server 6.1.37 on Windows and AIX
            Reporter: Prabhat


I am a new user on OpenJPA,
I have a scenario where I need to perform update/insert in multiple entities on one transaction.
How to achieve this?

example of EntityManager update method (auto generated by Rational Software Architect8.0.3).
[ The same way, I have two more entities. ]
==================
	@Action(Action.ACTION_TYPE.UPDATE)
	public String updateKna1(Kna1 kna1) throws Exception {
		EntityManager em = getEntityManager();
		try {
			em.getTransaction().begin();
			kna1 = em.merge(kna1);
			em.getTransaction().commit();
		} catch (Exception ex) {
			try {
				if (em.getTransaction().isActive()) {
					em.getTransaction().rollback();
				}
			} catch (Exception e) {
				ex.printStackTrace();
				throw e;
			}
			throw ex;
		} finally {
			////em.close();
		}
		return "";
	}

==========================
If I keep commit/rollback in each entity then I can not rollback from all previous entities
(if last entity insert or update fails).

Can you help me on this?

Thanks in Advance.



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