Ritesh wrote:
> Hi François ,
>
> Thanks for quick reply .
>
> François Exertier wrote:
>
> > Hi,
> >
> > so, why using BMP if you can do the same into session beans ?
> > is your question ...
> >
> > - with BMP you write the data access code, but you let the
> > container manage the data synchronisation, transactions, i.e.
> > when to load/store the data ...
>
> But in BMP you have to call ejbload/ejbstore method explicitly
No ! with BMP, you write the code of ejbLoad/ejbStore, BUT the container
will call these methods when necessary, not you !
>
> Transaction => that means i don't have to write code for UserTransaction's
>methods
> begin() , commit() , rollback()
> Is this taken care by EJB server.
Yes.
>
>
> >
> > - entity beans are shared between several clients, while a session
> > bean is dedicated to one client.
>
> You mean to say that one enity bean can be in many transaction by serveral
>clients
> at a same time and the modification , cancellation , updation to enity bean is
>taken care
> by the EJBserver .
> Did i get correctly ?
Yes. Transaction isolation, concurrent access is managed by the EJB server.
François
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