[Zope3-Users] Utility Local to an Annotation?

[Derek Richardson]

I would like to create utility instances that are local to annotation 
instances. Each utility would be valid only within the scope of the 
related annotation.

The specific case is uuids for atom feed entries. We have annotations 
representing feeds and I would like my uuid utility to be local to the 
feed annotation, thus recording and making available uuids only for 
entries in that feed. See 
http://www.openplans.org/projects/vice/uuids-in-atom for more details 
and an architectural diagram.

FYI, an object can be syndicated in more than one feed. Thus, for feed 
X, I want to look up the uuid associated with object a for feed x; for 
feed y, I would want the *different* uuid associated with object x (same 
object) for feed y.

However, I am not sure I can turn an annotation into a site and, even if 
I can, am not sure that's what I want to do.

Comments? Suggestions?

Thanks,

Derek