marc fleury wrote:
> > -1. Doing these calls in EntityContainer won't work. Motivation:
> > * There is a difference in semantics of these calls between BMP and CMP.
> > The only part that knows if we're doing BMP or CMP is the persistence
> > manager. Hence the persistence manager must make these calls. The
>
> wrong.
>
> exposing CMP or BMP with metadata is trivial really.
> And then we can do the right thing re: implementing EJB calls in the right
> place.
If you want to change this then the container callbacks will be spread
all over the place, and the EntityContainer wont be making all of them.
For example, the cache calls the PM to activate instances, and currently
the PM calls "ejbActivate". If you want to change that along the above
lines, then the "ejbActivate" call goes into the cache instead. What
would be the point of that?
> Don't make a big architectural decision such as "all ejb calls will be
> called by the persistence engine" based on the fact you don't put the
> relevant information in the right place.
The PM should deal with the semantics of the create, and I thought that
this was one aspect of it. As above, I also wanted to keep
EntityContainer as simple as possible.
> > persistence manager also makes all the other calls so this is nothing
> > new.
> > * EntityContainer is glue only. It should not do any actual work. All it
> > does is delegate to other parts to do the actual work.
>
> wow, JAWSPersitenceManager.java is "container" but EntityContainer.java is
> "glue"?????
No, JAWS implements the persistence semantics, and EntityContainer is
the logical view of a bean. But yes, for the most part EntityContainer
is glue. COME ON. This is something that we have advocated from the
beginning. Everything that is related to algorithms of some kind is
pluggable. This is the core idea of the entire jBoss 2.0 architecture.
You don't agree? Dude, sometimes I feel sooo lonely.
> wow, you can't be serious.
Very serious. IMHO your above ideas are degenerating the entire
architecture. Depressing to say the least. I thought you had understood
what I wanted to do here. :-(
/Rickard
--
Rickard �berg
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