Justin Deoliveira wrote:
Chris Holmes wrote:
One question, on the spec itself, can we specify the behavior per
featureType? Or do we only have the option to set globally?
It is specified on the "Insert" statement itself.
I was talking about the capabilities reporting of it, if we have to
report per server, or if we can per featureType
If we have diverse datastores, then what do we do? Aggregate and only
report what all are able to do? Perhaps we need a spec change, or at
least need to ask the WFS list what others are doing?
I agree, it sure would be nice for the server implementors to be able to
advertise it in the capabilities at the feature type level which modes
are available. The downside being it is more of a hassle for the client
to have to check it.
One other thing to note, our MaxIncFIDMapper actually will perform fine
with UseExisting _and_ GenerateNew. And would work with
ReplaceDuplicate without _too_ much work, and wouldn't be super
dangerous since we're doing things outside of the database, not messing
with serial indexes and the like. (We just do a max(columname) on the
fid column to determine what the next fid should be).
Maybe I am missing something but I am not sure I see how it applies to
UseExisting? How does this allow the datastore to use a fid that was
specified by the user?
Because it can just take whatever value the user supplied and stick it
in to the column. This would take a bit of code adjustment, but what I
meant is that it wouldn't be some infrastructure change on the database
side. MaxIncFID would generate the next key if the user specified none,
if they did then it'd be fine to just use it - as it doesn't rely on a
serial key or any other kind of auto-incrementing device.
Chris
Chris
Andrea Aime wrote:
Hi all,
thinking about this subject it seems to me we need to change
how gt2 datastore behave and add at least some minimal capabilities
support to them in order to manage properly the required WFS 1.1
idgen attribute for transaction operations.
I've tried to collect all my findings here:
http://docs.codehaus.org/display/GEOTOOLS/idgen+support+for+WFS+1.1+transaction+request
Please comment on the ml, I'll update the document along the way.
Cheers
Andrea
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