[DAS] Adjacent feature extension

[Thomas Down]

On Mon, Mar 7, 2011 at 2:11 PM, Jonathan Warren <jw12 at sanger.ac.uk> wrote:

> In particular, I can foresee servers not interpreting the "type" filter
>> appropriately, being likely to process the adjacent query then apply the
>> type filter, which would be wrong. I have a feeling most sources implement
>> the type filter as a passive "post filter" rather than an active one. I can
>> tell you right now that it is going to be really quite difficult for me to
>> implement "adjacent" correctly for the ASTD gene/transcript/exon sources,
>> and I suspect the same will be true for retrofitting lots of other sources.
>>
> This is an optional capability though right?
>

That is definitely the intent of my proposal.

Even if this eventually gets rolled into the spec., my suggestion would be
to keep it optional (negotiated via a CAPABILITY).

                 Thomas.