DataLink RFC period annoucment

[Jose Enrique Ruiz]

Hi DAL

2014-07-21 10:12 GMT+02:00 Markus Demleitner <msdemlei at ari.uni-heidelberg.de
>:

>
> > c) One point concerning "blank or missing value". In my experience,
> > some  servers have no ALL option for such or such parameter : just
> > the lack of the HTTP "param=xxx" parameter meaning "ALL" for this
> > constraint. Removing the "&param=" parameter of the URL in case of
> > blank or missing value can be a solution for managing these cases.
>
> What you're saying is that we should say, at some suitable point:
>
>   Parameters not used in a service invocation should not be passed at
>   all, rather than with empty values.
>
> I'd somewhat have expected that to be implied -- do you really think
> people would pass what in effect are empty strings?  I'm not opposed
> to the prose, just a bit surprised that it might be necessary.
>

If "empty value" means "ALL values", one question rises here: How to make a
query to gather those datasets with param=empty/NULL/blank ? I do not know
if there are use cases for this :-/

Cheers
--
Jose Enrique Ruiz
Instituto Astrofisica Andalucía - CSIC
Glorieta de la Astronomía s/n
18009 Granada, Spain
Tel: +34 958 230 618
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