[Zope3-dev] Re: [Zope-dev] Two visions
apm13 at columbia.edu
Tue Feb 28 10:26:12 EST 2006
On Tuesday 28 February 2006 00:22, Encolpe Degoute wrote:
> Lennart Regebro a écrit :
> | OK, some initial, fuzzy comments:
> | On 2/27/06, Jim Fulton <jim at zope.com> wrote:
> |>2) In an alternate vision, Zope 2 evolves to Zope 5.
> |> - Zope 5 will be the application server generally known as Zope. It
> |> will be backward compatible (to the same degree that Zope 2
> |> releases are currently backward compatible with previous Zope 2
> |> releases) with Zope 2. Zope 5 will similarly be backward
> |> compatible with Zope 3 applications built on top of the current
> |> Zope 3 application server.
> |> Note that Zope 5 will leverage Zope 3 technologies to allow a
> |> variety of configurations, including a Zope 2-like configuration
> |> with implicit acquisition and through-the-web development, and a
> |> Zope 3-like configuration that looks a lot like the current Zope
> |> 3 application server. Maybe, there will be a configuration that
> |> allows Zope 2 and Zope 3 applications to be combined to a
> |> significant degree.
> | This overwhelms my complexity sensor. :-)
> | I like the vision of Zope2 becoming a set of extra packages you
> | install for Zope3, to get backwards compatibility. Maybe this is the
> | same as what you call Zope 5, maybe not.
> I vote for this one.
> There's already Five product to help Zope2 products to become to be
> Zope3 compatible. Now, it's to Zope2 developpers to do the
> migration step.
+1 also, though I've done next to no pure Zope 3 development, I've done
enough development with Five to realize that the major problems with
developing in this manner come from having to deal with artifacts of Zope 2.
As a result, I think it's best to componentize the bits of Zope 2 that
provide useful features missing from Zope 3, and abandon the rest. Being
able to transfer existing Zope 2 applications with little effort is not a
terribly important goal IMO, especially if doing so requires making Zope 3
more monolithic and Zope 2ish.
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