[ZODB-Dev] Announcing ZCF 0.5 - The ZODB CORBA integration framework

[John D. Heintz]

Doh! Christian,

I'm not working this Thursday: it is July 4th, Independence Day. I may
have time to poke at the problem but won't be able to work on it very
much.

I'll look on IRC this weekend when I get a chance and if you're there
I'll be able to work with you then, or else we'll have to plan on Monday
or Tuesday.

Sorry! My brain was obviously lost someplace.

John

On Tue, 2002-07-02 at 14:46, Christian Reis wrote:
> On Tue, Jul 02, 2002 at 02:14:03PM -0500, John D. Heintz wrote:
> > > I was using omniORB3.0.4 and omniORBpy1.5, which don't match. 3.0.5 and
> > > 1.5 work fine. However, now I'm getting this:
> > 
> > Oops, I've done that.
> 
> Makes me feel like an idiot after posting stack traces and running things
> through gdb with varied results. :) It was _sooo_ obvious.
> 
> > >     omniORB.CORBA.UNKNOWN: Minor: 0, Completed:
> > >     COMPLETED_MAYBE.
> > 
> > Doh. COMPLETED_MAYBE is never good...
> 
> Well, in this case an unmarshalled exception was raised in the server
> side, so it's pretty reasonable. We get lots of those in ORBit-Python :)
> 
> > >     omniORB: Caught an unexpected Python exception during up-call.
> > >     Traceback (most recent call last):
> > >     File "./Server.py", line 83, in nameStorageObject
> > >     sObj = self._servantHelper.lookupDomainObj(sObj)
> > >     AttributeError: SampleSession instance has no attribute
> > >     '_servantHelper'
> > 
> > Hmm. It's been a while since I've been into the details, but that
> > doesn't sound right ;)
> 
> Something wierd in the hierarchy is going on in 0.6, and I'm afraid I
> understand very little of _why_ certain parts exist, so I can't really
> dive in and fix it at the moment (i've got a certain serial printer that
> is already providing me with enough indigestion atm).
> 
> The fact is that _servantHelper is only defined in Servant, not in
> BaseServant, and SampleSession inherits from the latter. Don't know why
> though. :-) You only use the helper in the remove() method of
> RemoveableServant in 0.5, which is probably why it works. In 0.6 you use
> it also in nameStorageObject which is why things break.
> nameStorageObject, in fact, has been introduced in 0.6.
> 
> > > I've tried working a bit with the inheritance, but couldn't make it
> > > work. I'm pulling ZCF-0.5 in the meantime to see how it goes.
> > 
> > That one should work, but has even less documentation and sample code.
> 
> Yep, it works. I'll start reading into it.
> 
> > > Is there some extra documentation?
> > 
> > There isn't much more documentation I'm afraid.  
> > 
> > This Thursday I'll dig back into the ZCF 0.6 release. If your available
> > either Thursday or Friday I can work directly with you to figure out
> > where those errors are coming from.
> > 
> > Maybe we'll actually produce some docs to answer your questions as well.
> 
> I am available all Thursday if you want to work on this. I'm 100% of the
> time on IRC: irc.openprojects.net #async so if you want to use that
> you're more than welcome. /ctcp page kiko to beep me. Otherwise email
> works.
> 
> I am wondering a bit about how well this will fit into our
> recently-released indexing extension. Hmmm. Performance-wise too. :-)
> 
> Take care,
> --
> Christian Reis, Senior Engineer, Async Open Source, Brazil.
> http://async.com.br/~kiko/ | [+55 16] 261 2331 | NMFL
> 
> 
> _______________________________________________
> For more information about ZODB, see the ZODB Wiki:
> http://www.zope.org/Wikis/ZODB/
> 
> ZODB-Dev mailing list  -  ZODB-Dev@zope.org
> http://lists.zope.org/mailman/listinfo/zodb-dev
> 
-- 
John D. Heintz | Senior Developer

1016 La Posada Dr. | Suite 240 | Austin TX 78752
T 512.380.0347 | jheintz at isogen.com

http://www.isogen.com