I can't find an example of this in the filter spec.
I see:
<Filter>
<And>
<PropertyIsLessThan>
<PropertyName>DEPTH</PropertyName>
<Literal>30</Literal>
</PropertyIsLessThan>
<Not>
<Disjoint>
<PropertyName>Geometry</PropertyName>
<gml:Envelope
srsName="http://www.opengis.net/gml/srs/epsg.xml#63266405";>
<gml:lowerCorner>13.0983 31.5899</gml:lowerCorner>
<gml:upperCorner>35.5472 42.8143</gml:upperCorner>
</gml:Envelope>
</Disjoint>
</Not>
</And>
</Filter>
which I'm interpreting you say should be:
<Filter>
<And>
<PropertyIsLessThan>
<PropertyName>DEPTH</PropertyName>
<Literal>30</Literal>
</PropertyIsLessThan>
</And>
<Not>
<Disjoint>
<PropertyName>Geometry</PropertyName>
<gml:Envelope
srsName="http://www.opengis.net/gml/srs/epsg.xml#63266405";>
<gml:lowerCorner>13.0983 31.5899</gml:lowerCorner>
<gml:upperCorner>35.5472 42.8143</gml:upperCorner>
</gml:Envelope>
</Disjoint>
</Not>
</Filter>
?
Also on the WFS cite tests, there is:
<wfs:GetFeature
service="WFS"
version="1.0.0"
outputFormat="GML2"
xmlns:cdf="http://www.opengis.net/cite/data";
xmlns:wfs="http://www.opengis.net/wfs";
xmlns:ogc="http://www.opengis.net/ogc";
>
<wfs:Query typeName="cdf:Other">
<ogc:Filter>
<ogc:Or>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>cdf:integers</ogc:PropertyName>
<ogc:Literal>10</ogc:Literal>
</ogc:PropertyIsEqualTo>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>cdf:integers</ogc:PropertyName>
<ogc:Literal>10</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Or>
</ogc:Filter>
</wfs:Query>
</wfs:GetFeature>
That should be:
<wfs:GetFeature
service="WFS"
version="1.0.0"
outputFormat="GML2"
xmlns:cdf="http://www.opengis.net/cite/data";
xmlns:wfs="http://www.opengis.net/wfs";
xmlns:ogc="http://www.opengis.net/ogc";
>
<wfs:Query typeName="cdf:Other">
<ogc:Filter>
<ogc:Or>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>cdf:integers</ogc:PropertyName>
<ogc:Literal>10</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Or>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>cdf:integers</ogc:PropertyName>
<ogc:Literal>10</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Filter>
</wfs:Query>
</wfs:GetFeature>
under this ionic schema?
Or are you saying it's just for featureid stuff? Which I also don't
find examples of in the filter spec...
Looking at the schema I think I see what you're saying, a featureid
isn't one of the options under the logic type.
But strictly following the schema, it shouldn't be legal to combine a
featureId filter with _anything_. And if you're to go with the ionic
way, are they implying that since a featureid filter is next to an Or
filter it should be an or? And if it's next to an And should it be an
and? What's the implied behavior if there's no logic filter at all?
Like if I just make a bbox filter and put a featureid next to it? Is it
Or or And?
What does cubewerx do? This sounds like an issue we should sort out
with the implementors... At least we should email wfs-dev.
Chris
Jesse Eichar wrote:
The same issue exists in Filter 1.1. And using a function won't help
because third party servers won't support the function. I working with
Ionic's Redspider server and it can't read our filters. I've made up a
work around. I'm adding a hint to the XML Filter Encoding so that you
can set the compliance level. When communicating with Geoserver I use
the default compliance Ionic is another level (medium) and then there is
strict. Ionic allows:
<Filter>
<Or>
<BBox> some box </BBox>
</Or>
<FeatureId fid="fid" />
</Filter>
Which is still not legal but is very useful. In the case of NOT(
FidFilter ) I'm doing the processing on the client.
We will have to think about how we want to handle this issue in general
though.
Jesse
On 4-Aug-06, at 12:50 AM, Jody Garnett wrote:
Jesse can you please confirm against Filter 1.1? What you say sounds
pretty silly, if needed we can work around it with a function :-(
Also note that Filter is available in a BNF form as part of the
catalog specification - we really need to take a common ground, and
police what is created through the use of specification specific
Factories.
I would also ask Justin for comment as he has spent a lot of time on
the ground with Filter.
Jody
Hi,
I've been browsing through the filter spec and to my dismay have
learned that the following is not legal:
<Filter>
<Or>
<BBox> some box </BBox>
<FeatureId fid="fid" />
</Or>
</Filter>
To be compliant with the spec it is supposed to be:
<Filter>
<Or>
<BBox> some box </BBox>
</Or>
<FeatureId fid="fid" />
</Filter>
We also can not do the following:
<Filter>
<Not>
<FeatureId fid="fid"/>
</Not>
</Filter>
Our filter implementation allows both so we can't interoperate
properly with others because we can make illegal documents....
Looking for comments on what should be done here.
Jesse
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