Zope + Ape + Subversion (was: RE: [Zope-dev] Using a truely r evis ion based storage for Zope ?)

[Kapil Thangavelu]

On Tue, 2004-04-13 at 22:46, Shane Hathaway wrote:
> On Tue, 13 Apr 2004 Jean-Francois.Doyon at CCRS.NRCan.gc.ca wrote:
> 
> > Thanks for the extra tips, I'll check out those interfaces! I'm also getting
> > up to speed on the whole mapper concept, where the work regarding properties
> > handling seems to be ?
> 
> Ape supports both annotations and Zope properties.  Annotations are blocks
> of multi-line text, while Zope properties are less constrained.  On the
> filesystem, Ape stores many Zope properties together in a single
> annotation called "properties".  Other annotations include object
> classification, the remainder pickle (encoded in base 64), and security
> information.
> 
> What are the expectations and limits of Subversion properties?  If they
> are blocks of multi-line text, you can store the annotations as Subversion
> properties.  If not, we'll still need a .properties file.  (Note that 
> the name ".properties" is thus confusing.  Oops.)
> 

svn supports aribtrary property values. ie you can store binary
(remainder pickles, object classification, etc.) of arbitrary size on
them. there is some question of how well some naive gui client will do
when trying to list such properties, as there is currently no notion of
metaproperties/property schema beyond the property namespace for
introspection of a property.

-kapil