I'm hoping to redo the internal details of a adapter registries in the next release cycle, along the lines of work done in the jim-adapter-redesign branch. This redesign has the following goals:
- Bring the adapter-lookup algorithm closer to the somewhat familiar method-lookup algorithm for Python new-style classes. Of course, this is extended (in an ovious way) to deal with multiple dispatch. This new algorithm should give the same results as the current mechanism. In fact, I delayed working on the multi-adapter fix, hoping that I would achiev the same result with the new lookup mechansim. - Provide an equivalent to super for adapter lookup. If an adapter overrides another adapter, it should be possible for the overriding adapter to find and use the adapter it overrides. - Provide greater performance. I had originally hoped to achive the last goal without use of any caching. (The current algorithim is based on very extensive caching.) Alas, without caching the new algorthm is too slow, and much slower than the existing alsgorthm. I am hopeful that with a much simpler and less expensive cache in front of the new algorthm, I'll be able to meet current performance for single-adapter lookup and greatly improve performance for multi-adapter lookup. I expect to be able to report results in January. Obviously, this refactoring will render obsolete tools writted against the current implementation. Jim -- Jim Fulton mailto:[EMAIL PROTECTED] Python Powered! CTO (540) 361-1714 http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org _______________________________________________ Zope3-dev mailing list Zope3-dev@zope.org Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
