On Nov 25, 2009, at 5:08 PM, Chris McDonough wrote:
> Chris McDonough wrote:
>>> If some set of ZCA APIs made it the responsibility of the *caller* to
>>> invoke the adapter with arguments would go a long way between normalizing
>>> the difference between utilities and adapters (because they would
>>> essentially then be the same thing).
> The very core mechanics of how a component registry behaves resides almost
> entirely in the zope.component.registry module.
> It would be useful to split these core mechanics into a separate package.
> Here's why:
> - The zope.component module carries along an expectation of a particular
> API. This global API is not required to use the mechanics of the underlying
> registry machinery.
> - The zope.component package has a number of features that are irrelevant
> to the operation of the core registry itself, such as persistence and
> - The registry itself is useful outside the context of the zope.component API
> package; the API is essentially just "candy" on top of the registry itself.
> I have created such a package at
> It contains an implementation of the registry and the tests for the registry
> object. It depends on zope.interface and zope.event. I'd like to actually
> remove the zope.event dependency and release a newer version of zope.event
> that uses a global inside zope.registry as the list of registered object
> (reverse the dependency).
> After that's done, I'd suggest we make zope.component depend on zope.registry.
> At this point, people can innovate with their own APIs to the registry object
> as necessary; they needn't carry along the baggage of the expecation of the
> older zope.component API working in their app.
FWIW, it's not of a lot of interest to me. I'm interested in changing things
at a lower level. However that works, if I manage to build zope.component
backwards compatibility as an add-on then I'll have to worry about all of the
bits in zope.component, not just this.
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