[DAS] LDAS/DasClient problems

[Lincoln Stein]

If the lightweight server doesn't know about a particular landmark, how can 
it tell the difference between an incorrect landmark and an unannotated 
one?  Or are you thinking that the lightweight server will know enough about 
the assembly to have the names of all the landmarks, but not necessarily 
their lengths and versions?

I've already bumped LDAS up to version 1.5 and the spec will follow as soon 
as I'm sure it's all implementable.

Lincoln

On Monday 04 February 2002 11:24, Thomas Down wrote:
> On Mon, Feb 04, 2002 at 11:08:57AM -0500, Lincoln Stein wrote:
> > Thomas,
> >
> > I'm fixing this now.  When we talked last week, I recall you wanted an
> > <ErrorSegment> segment when a segment wasn't found, and an empty
> > <Segment> section when the segment was unannotated.  Please confirm that
> > I am remembering right.
>
> ERRORSEGMENT is useful for reporting error conditions per-segment.
> However, there's a second part which I'd like to see, which has
> slightly different semantics
>
>    <LANDMARKNOTANNOTATED id="AC123456" />
>
> This never has start and stop attributes (it applies to a
> complete landmark), and clients should never treat it as
> an error condition.
>
> The advantage of this over a pure, empty, segment is that
> segment elements have required start, stop, and version
> attributes (at least according to the DTDs I've got here).
> Having a separate landmarkNotAnnotated makes deploying
> lightweight annotation servers which don't need to know
> about every sequence on their reference server /much/
> easier and nicer.
>
> I originally proposed this in:
>
>    http://www.ensembl.org/Dev/Lists/das/msg00427.html
>
> Having seen more annotation servers going up, and the kind
> of issues people have with them, I think the argument is
> still valid.
>
>
> If any of this stuff is being added, could we have a
> new version number?
>
> Thanks,
>
>     Thomas.
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-- 
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Lincoln D. Stein                           Cold Spring Harbor Laboratory
lstein@cshl.org			                  Cold Spring Harbor, NY
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