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Subject: RE: Beginning V2 ....
Date: Fri, 26 Sep 2003 12:59:49 -0700
Message-ID: <4B2B4C417991364996F035E1EE39E2E11F33BF@uskiex01.amer.bea.com>
Thread-Topic: Beginning V2 ....
Thread-Index: AcOEZrXkt2dl94+WT+uLDGpRV8SNxQAAI4sw
From: "Cezar Andrei" <cezar@bea.com>
To: <xmlbeans-dev@xml.apache.org>

David Bau wrote:
> Eric wrote:
> > I'm planning on getting the V2 code base started by making=20
> a copy of V1
> and checking it in to V2.
+1

> Here's what I think we're going to need to do overall while=20
> we ramp up v2:
>=20
> (1) Get the old code (copy of v1) checked into v2 and building
>=20
> (2) Keep the XMLBeans functionality running while we build "new" stuff
> either into it or on the side of it, e.g., in new directories=20
> where new
> stuff isn't just minor mods.  While doing this, nobody gets=20
> to break DRTs
> (i.e., "ant drt") - unless there's a really good reason, in=20
> which case the
> DRTs get modified.  For example, when you're working on the=20
> new store, you
> don't get to break the old store, because other folks will be=20
> depending on
> having _some_ store that works.  When I (and others) start=20
> reworking binding
> to generalize it, we don't get to take away the old binding=20
> code until we
> have new code that works better.
>=20
> (3) When the new store is ready for prime-time (or any other=20
> big component),
> we can plug it in and remove old code either (a) atomically=20
> in a single
> commit, not breaking DRTs, or (b) over a transition period where it's
> possible to run either the old or new code, and there is a=20
> path that passes
> DRTs.  The switchover is either atomic or overlapping, but=20
> there should be
> no switchover with a gap, so that other developers that are=20
> depending on
> basic stuff running can continue to work in parallel.
>=20
> In other words, let's make sure any new work is side-by-side with old
> working code until it's good enough so that old code can be=20
> deleted. I think
> it's what we need to do to be able to make parallel forward=20
> progress on v2.
> Sensible?
>=20
+1

Is there a way to run the drt automatically after a checkin, something =
similar to what they have for Mozilla? ( =
http://tinderbox.mozilla.org/showbuilds.cgi?tree=3DSeaMonkey )
Do other Apache projects have something similar?=20

Cezar

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