Alternatively, you could set the current transaction for rollback using the
EJBContext.setRollbackOnly() call when you catch any exception.
-Raju
Richard Monson-Haefel wrote:
> You don't have to do anything if you set up your transaction attributes
> correctly.
>
> If all this creating takes place in the context of one transaction which is
> demarcated within a method of your session bean, a transaction failure of anyone
> of the creates can be thrown outside the scope of the session bean to cause all
> the creates to automatically role back. That's the point of EJB, to aggregate
> transactional components into larger units of work.
>
> SessionBean (manages work flow)
> someMethod( )
> {
> create CMP 1
> create CMP 2
> ...
> create BMP 1
> }
>
> Throwing a transaction or run-time exception out side the scope of the Session
> bean will cause all work that occurred in scope of the transaction to be rolled
> back. The CMP and BMP entity beans should propagate the transaction of the
> Session bean.
>
> Chaganthi, Madhusudan R. wrote:
>
> > Hi All,
> >
> > I have a question regarding controlling transactions specific to a session
> > bean doing business on behalf of numerous entity beans.
> >
> > My session bean talks to 9 different CMP entity beans (9 different tables)
> > and 1 BMP bean (2 different tables) to create one complete object (an
> > Inventory Iem in our case). The BMP bean can be created only after ALL the 9
> > cmp beans have been successfully created.
> >
> > How can I control the transaction in my session bean so that I can roll back
> > in case a failure occurs in any point of time during this numerous create()
> > calls ?
> >
> > I was thinking about storing the primary keys of each cmp bean after it is
> > created and if at all a bean rolls back, I can go back and remove the prior
> > ones with a findByPrimaryKey followed by remove method. I wasnt too sure
> > about encapsulating all the create methods in one big transaction since that
> > might lead to nested transaction scenarios. Am I right?
> >
> > Any pointers would be helpful.
> >
> > Regards
> >
> > Madhu
> >
> > Madhusudan R Chaganthi
> > > Centers for Disease Control and Prevention
> > > NCID/SRP/IRM (404) 639-2462
> > [EMAIL PROTECTED]
> >
> > In three words I can sum up everything I've learned about life:
> > It Goes On.
> >
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>
> --
> Richard Monson-Haefel
> Author of Enterprise JavaBeans
> Published by O'Reilly & Associates
>
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