[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2703) Investigate integration between Spring and WAS TM

[Vladimir Ivanov (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32798#action_32798 ] 

Vladimir Ivanov commented on HHH-2703:
--------------------------------------

As far as I understand, it's impossible to rollback the transaction through the setRollbackOnly() method call (that is why WebSphereExtendedJTATransactionLookup class throws java.lang.UnsupportedOperationException), while it's possible to determine transaction status through com.ibm.websphere.jtaextensions.ExtendedJTATransaction class (and HHH-3111 fixed that way). Does it possible to use com.ibm.wsspi.uow.UOWManager implementation class which is available under "java:comp/websphere/UOWManager" name in JNDI for this purpose? It is public and supported by IBM and have already been used by Spring framework team in their org.springframework.transaction.jta.WebSphereUowTransactionManager class (they need it to implement suspend/resume transaction functionality, for example for REQUIRES_NEW or NEVER transaction attributes).

For example, following code rollbacks JTA transaction in our case:

            try {
                // Retrieve an instance of the UOWSynchronizationRegistry interface from JNDI.
                final InitialContext initialContext = new InitialContext();
                final UOWSynchronizationRegistry uowSyncRegistry =
                        (UOWSynchronizationRegistry)initialContext.lookup("java:comp/websphere/UOWSynchronizationRegistry");
                uowSyncRegistry.setRollbackOnly();
                logDebug(this, "Transaction is now marked for rollback");
            } catch (Exception e) {
                logDebug(this, "UOWSynchronizationRegistry - exception was thrown:", e);
                throw new RuntimeException(e);
            } 

> Investigate integration between Spring and WAS TM
> -------------------------------------------------
>
>                 Key: HHH-2703
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2703
>             Project: Hibernate Core
>          Issue Type: Task
>          Components: core
>            Reporter: Steve Ebersole
>            Assignee: Steve Ebersole
>
> Supposedly as a result of Spring and IBM's blood pact, Spring has tight integration with the WAS TM (not sure how that is possible since IBM continually claims that TM access is unsupported whenever this is asked in relation to  Hibernate).  Anyway, there may be some stuff we could use here...
> http://blog.interface21.com/main/2007/06/21/spring-framework-certified-on-websphere/

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