Feature chaining (feature links) always produce a feature type, i.e. this
functionality cannot
be used to map multivalued attributes that are of a primitive type (e.g.
String, Integers, etc ...).
Unless I missed something using Ben suggestion is the only way of achieving
this with App-Schema right now.
On 09/22/2017 09:21 PM, Ben Caradoc-Davies wrote:
It looks like you are trying to map a ModelView into an individualName
property, which is of type xs:string. This does not make sense, so app-schema
converts the ModelView to its Java String representation as a final fallback.
Have you considered using a denormalised source table? This works for gml:name
and will likely work for gsmlp:individualName:
http://docs.geoserver.org/latest/en/user/data/app-schema/mapping-file.html#denormalised-sources
Kind regards,
Ben.
On 23/09/17 00:33, aquentin wrote:
Hi,
In order to better understand the problem, many details added :
I'm trying to use app schema to expose a simple feature that have attributes
with cardinality 0...N.
The xsd is here and concern modelview=>
https://forge.brgm.fr/svnrepository/epos/trunk/schemas/epos-lite.xsd
for example :
element name="individualName" type="string" maxOccurs="unbounded">
<annotation>
<documentation>Name of the author(s).</documentation>
</annotation>
</element>
In database, I create one table "modelview" with foreign key to another
table "individualname", to respect multiplicity.
I tried to use feature link but an error raised "No top level element found
in schemas". It shouldn't be the good manner to do mapping.
I tried FEATURE LINK as is :
in modelview mapping :
...
<includedTypes>
<Include>mapping_individualname.xml</Include>
</includedTypes>
...
<FeatureTypeMapping>
<isDenormalised>false</isDenormalised>
<sourceDataStore>datastore</sourceDataStore>
<sourceType>modelview</sourceType>
<targetElement>gsmlp:ModelView</targetElement>
<attributeMappings>
<AttributeMapping>
<targetAttribute>gsmlp:ModelView</targetAttribute>
<idExpression>
<OCQL>modelid</OCQL>
</idExpression>
</AttributeMapping>
<AttributeMapping>
<targetAttribute>gsmlp:individualName</targetAttribute>
<sourceExpression>
<OCQL>modelid</OCQL>
<linkElement>individualNameType</linkElement>
<linkField>FEATURE_LINK</linkField>
</sourceExpression>
<isMultiple>true</isMultiple>
</AttributeMapping>
and in mapping_individualname.xml file :
<typeMappings>
<FeatureTypeMapping>
<isDenormalised>false</isDenormalised>
<sourceDataStore>datastore</sourceDataStore>
<sourceType>modelview_individualname</sourceType>
<targetElement>gsmlp:ModelView</targetElement>
<mappingName>individualNameType</mappingName>
<attributeMappings>
<AttributeMapping>
<targetAttribute>gsmlp:individualName</targetAttribute>
<sourceExpression>
<OCQL>individualname</OCQL>
</sourceExpression>
</AttributeMapping>
<AttributeMapping>
<targetAttribute>FEATURE_LINK</targetAttribute>
<sourceExpression>
<OCQL>modelid</OCQL>
</sourceExpression>
</AttributeMapping>
</attributeMappings>
</FeatureTypeMapping>
</typeMappings>
but the output here
(https://epos.brgm-rec.fr/geoserver/ows?service=wfs&version=2.0.0&request=GetFeature&typenames=gsmlp:ModelView&OUTPUTFORMAT=GML3)
is not really what I'm waiting for :
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd6>=[AttributeImpl:individualName<string>=G.
Courrioux]
</gsmlp:individualName>
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd5>=[AttributeImpl:individualName<string>=S.
Gabalda]
</gsmlp:individualName>
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd4>=[AttributeImpl:individualName<string>=C.
Allanic]
</gsmlp:individualName>
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd3>=[AttributeImpl:individualName<string>=K.
Schulmann]
</gsmlp:individualName>
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd2>=[AttributeImpl:individualName<string>=E.
Skrzypek]
</gsmlp:individualName>
<gsmlp:individualName>
FeatureImpl:ModelView<ModelViewType
id=modelview_individualname.fid--57ce97cc_15e846f8924_-7fd1>=[AttributeImpl:individualName<string>=A.
Guillen]
</gsmlp:individualName>
thank you
Regards.
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