[Zope3-dev] EventService, references, and subscription semantics

[Steve Alexander]

Shane Hathaway wrote:

> class IReference (Interface):
>     """Provides a way to find an object without necessarily keeping a
>     strong reference."""
> 
>     def dereference(context):
>         """Returns the referenced object."""

<deletia>

> The nice thing is you can encapsulate both strong and weak references 
> this way.  The reference could hold an absolute path, a relative path, 
> the object itself, a URL, a database query, etc.

The nice thing with Zope 3 is that we can define an IReferenceLookup 
utility, so we can ask for an IReference adapter for a particular 
object, and get an appropriate IReference.

Hmmm... this could work well with the EventChannel and ObjectHub.

--
Steve Alexander