[Zope3-dev] Second ZOPE 3 mini- NEWSLETTER (and kinda large glossary)

[Guido van Rossum]

> >   [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/)