Hey Ben,
Sorry for the late response. But if you look at Table 14 of the spec
(section 8.3.5.3, page 53) you will notice a service constraint named
"PagingIsTransactionSafe", which is described as: "Specifies whether the
server maintains transactional consistency between paging iterations".
It is possible i am misunderstanding what this implies.
On Tue, Feb 21, 2012 at 1:52 AM, Ben Caradoc-Davies
<[email protected]> wrote:
> Justin,
>
> the only outstanding issue I can find in GSIP 61 is the bit where you say:
>
> "WFS 2.0 adds the ability to page results of a GetFeature request via the
> startIndex and maxFeatures [sic, I think you mean count] parameters. The
> WFS specification actually implies that a service must maintain consistent
> paging results in the light of transactions, but such a restriction is very
> difficult to implement and implies that the server be able to store large
> results in memory, or maintain database transactions between requests which
> goes against the stateless nature of WFS all together. For this reason we
> ignore this requirement in our implementation."
> http://geoserver.org/display/**GEOS/GSIP+61+-+WFS+2.0<http://geoserver.org/display/GEOS/GSIP+61+-+WFS+2.0>
>
> I can't find anything in the spec that *requires* consistent paging
> results across transactions (but then I know transactions least of all). Or
> do you think it is just a convenient omission? I can see why it would make
> sense, and also why it would be prohibitive to implement.
>
> Next SWG meeting is on Wednesday; still time for me to squeeze in a last
> minute change request if necessary (for WFS 2.1).
>
> Kind regards,
> Ben.
>
>
>
> On 01/02/12 14:07, Ben Caradoc-Davies wrote:
>
>> Justin,
>>
>> the working group is yet to receive all the change requests and has been
>> discussing which to discuss [1]. Looks like there are some that are
>> similar to your concerns. When I have them, I will compare the change
>> requests to GSIP 61 and see if there are any outstanding issues.
>>
>> Kind regards,
>> Ben.
>>
>
> --
> Ben Caradoc-Davies <[email protected]>
> Software Engineer
> CSIRO Earth Science and Resource Engineering
> Australian Resources Research Centre
>
--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
_______________________________________________
Geoserver-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-devel
