I want to apologize to this list, I thought the original question was on
the jBoss list.
Again my deep apologies as I now realize (after reading alexandre's
mail) that this was on the ejb-container-group list not our list nor our
JAWS mailing list.
Again "toutes mes excuses" to the france telecom and bull gang, this was
in no way intended to "advertise" jBoss on your list and even though
there is competition
1- we dust you ;-)
2- we have great respect for your work and gang (et pu*ain! on est entre
francais)
Also, in reading Alexandre mail's I feel compelled to explain the way we
did it in JAWS.
You are right in saying that you need a custom OR mapper. It turns out
O/R mapping for EJB is specific (due to the pass by copy semantics of
EJB) so that resolving complete references is overkill. Once you have
that insight serializing complex structure becomes trivial, the only
thing you really need to pay attention to is separating the directory
(for lookups with SQL or other query languages) from the "storage".
Again I am truly sorry about this and that will teach me to answer 100
mails every morning with my "fireclick" mouse.
Desole, vraiment, bonne chance
marc
marc fleury wrote:
>
> John Sharley wrote:
> >
> > The EJB 1.1 final spec decrees that container managed persistent fields
> > in an entity bean be one of these types:
> > 1. Java primitive.
> > 2. Java Serializable.
> > 3. Home interface reference.
> > 4. Remote interface reference.
> >
>
> yes this (4) is standard in jBoss
>
> marc
>
> > This last case avoids doing a findByPrimaryKey to obtain a reference to
> > another entity bean as the reference is stored.
> >
> > Has anyone attempted to or succeeded in having type 4 above as a
> > container managed persistent field in an entity bean ?
> >
> > If so, what DBMS did you use and how ?
> >
> > --
> > John.
> >
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