[wfs-dev] summary of changes from wfs 1.0 to 1.1?

[John Herring]

Peter, 
	Could you be more specific about why you are
thinking of dropping joins. 

	A query without a join could not even do basic
spatial query, so how is join-less WFS to do anything of
value spatially other than some sort of "get features (with
some attribute and type restrictions) within this (constant)
widow?" Without a join, one of two spatial parameters of a
spatial operation will have to be a constant. 

	That is "mostly useless" as query. That cannot be
what you mean. 

Regards,
John

You do what you can when you can because you can. 

The opinions expressed in this email are purely my own and
do not necessarily represent the opinions of any
organization
or otherwise sane person or persons.

John R. Herring
Architect, Spatial Products
Oracle Corporation
One Oracle Drive
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-----Original Message-----
From:
wfs-dev-bounces+john.herring=oracle.com at opengeospatial.org
[mailto:wfs-dev-bounces+john.herring=oracle.com at opengeospati
al.org] On Behalf Of Panagiotis (Peter) A. Vretanos
Sent: Monday, October 16, 2006 11:51 AM
To: Chris Holmes
Cc: geoserver-devel at lists.sourceforge.net;
wfs-dev at opengeospatial.org; Ian Turton
Subject: Re: [wfs-dev] summary of changes from wfs 1.0 to
1.1?

Chris,

Good summary.

However, F.Y.I, joins are being removed from the
specification in the next release.

Ciao.

Chris Holmes wrote:
> I just pulled this together from some notes that I made
for our 
> implementation, so it's a bit rough, but should give a
decent starting 
> point.  We've got a basic WFS (caps, describe and
getfeature) on a 
> branch in GeoServer, and are close to done with
transaction stuff.
> Justin may have some more to add, as he's been doing the
implementation.
> 
> 
> Soap Wrappers     For all operations
>     
> Get Feature WFS 1.1   
>     Results as hits
>     SortBy
>     Reprojection
>     * Xlink properties (get gml object stuff)
>     GML 3.1.1
>     
> Describe WFS 1.1   
>     GML 3.1.1 (no other changes afaik)
>     
> Transaction WFS 1.1   
>     Reprojection in Insert
>     IdGen options:
> 
> GenerateNew (default)
>   The web feature service shall generate unique
identifiers for all 
> newly inserted feature instances.
> UseExisting
>    In response to an <Insert> operation, a web feature
service shall 
> use the gml:id attribute values on inserted features and
elements. If 
> any of those IDs duplicates the ID of a feature or element
already 
> stored in the WFS, the WFS shall raise an exception.
> ReplaceDuplicate
>    A WFS client can request that the WFS generate IDs to
replace the 
> input values of gml:id attributes of feature elements that
duplicate 
> the ID of a feature or element already stored in the WFS,
instead of 
> raising an exception, by setting the idgen attribute of
the 
> InsertElementType to the value "ReplaceDuplicate".
> 
>     
> LockFeature WFS 1.1    No changes, except GML 3.1.1
>     
> GetGMLObject WFS 1.1   
>     New Operation (that doesn't make much sense imho,
we're not 
> implementing for WFS 1.1) tells the server to return
remote xlinks.
>     
>     
> GetCapabilities WFS 1.1   
>     SRS reporting
>     GetGMLObject caps mods
>     Version negotiation (not new, but wasn't an issue
before with just 
> one version of spec)
>     
>     
> Filter 1.1   
>      GML 3.1.1 parser
>      SortBy
>      Joins
>     
> 
> Chris
> 
> 
> 
> Ian Turton wrote:
>> Does any one have a document that summarises the changes
between the 
>> WFS 1.0 and 1.1 specifications? If not I guess I'll have
to read 
>> through the specs and the change requests and work it out
but 
>> obviously if someone else has already done this that
would be great.
>>
>> Thanks
>> Ian
>>
> 
> _______________________________________________
> wfs-dev mailing list
> wfs-dev at opengeospatial.org
> https://mail.opengeospatial.org/mailman/listinfo/wfs-dev

-- 
Panagiotis (Peter) A. Vretanos          CubeWerx Inc.
Big Kahuna (Senior Database Developer)
http://www.cubewerx.com
Tel. 416-701-1985 Fax. 416-701-9870
pvretano at cubewerx.com

"If you want to make an apple pie from scratch, you must
first
  create the universe." -- Carl Sagan
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