[hibernate-dev] HHH-16...

[James Carman]

The only reason I didn't go with the HQL_ANTLR_2 branch was that it
wasn't "mavenized" at least as far as I could tell.  That was the
easiest way I could get a working project up and running within my IDE
(mvn idea:idea).  Could we fork off a branch from the mavenized trunk
to do this work?  Then we could work on it together if you've got some
time to set up the 4-phase approach.

On 9/5/07, Steve Ebersole <steve at hibernate.org> wrote:
> On Wednesday 05 September 2007 01:48:31 pm James Carman wrote:
> > All,
> >
> > I would like to get this thing working (the join ... on ... syntax
> > stuff).  I have begun work on it already (got a build working, started
> > digging into ANTLR grammar, etc.), but I would appreciate any guidance
> > that you folks could provide.  I started by adding a couple of test
> > cases and trying to figure out where in the heck this stuff goes
> > haywire!  Right now, I'm looking into the SqlGenerator class as it
> > seems that's where the meat of this is going to be.  I'm not an ANTLR
> > expert, so that's probably been taking me the most time to wrap my
> > head around.  Again, any help you guys can provide would be greatly
> > appreciated, both by me and my client, since they're footing the bill
> > for this development effort (we need it on our project).
> >
> > James
> > _______________________________________________
> > hibernate-dev mailing list
> > hibernate-dev at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/hibernate-dev
>
> The very first thing I would do is to split the roles currently filled by
> FromElement into two separate node types (one for the join and one for the
> persister reference) because currently this is all munged together.  It'll
> make this easier to work with.
>
> The big difficulty is somehow tracking the property references as they are
> being resolved so that you know what is the right side and left side of the
> join.
>
> This whole problem is easier to solve when we move from 3 phases to 4 phases,
> which is the reason this was put on the back burner in the first place.
> There is a branch where i started prototyping some of this work:
> http://anonsvn.jboss.org/repos/hibernate/core/branches/HQL_ANTLR_2/  You
> might want to take a look there for some ideas.
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