[Zope3-dev] Second ZOPE 3 mini- NEWSLETTER (and kinda large glossary)
Guido van Rossum
guido@python.org
Thu, 31 Oct 2002 12:08:48 -0500
> > [NEW] Placeful: An adjective describing an object that resides
> > in the *ZODB* (and so is persistent) and is potentially
> > pertinent only to the ZODB branch (or "folder" and all children)
> > in which it resides. Similar to standard programming "local"
> > concept of variables. Opposite of *Placeless*.
> >
> > [NEW] Placeless: An adjective describing an object that resides
> > outside of the typically addressed Zope database, and is
> > available to all objects irresepective of their location in the
> > ZODB (or what "folder" they reside in). Usually not persistent,
> > but instantiated in memory on each program start. Somewhat
> > similar to standard programming "global" concept of variables.
> > Opposite of *Placeful*.
>
> Hm. I don't think that these terms have anything to do with ZODB,
> since they can also be applied to non-Persistent objects. All that
> placefulness requires is that it be "local" rather than "global" in
> scope of the application.
>
> At least, if *I* understand it correctly, which isn't certain. ;)
> But I'd like it to be true, since I expect to have quite a lot of
> "placeful" things in Zope 3 that *aren't* persistent and won't be
> going anywhere near ZODB.
I hope Gary's definitions are correct, because they are the first ones
that made these concepts clear to me.
--Guido van Rossum (home page: http://www.python.org/~guido/)