Try: <OCQL>if_then_else(equalTo(CAT_DESC, 'No Name'), Expression.Nil, CAT_DESC)</OCQL>
I found this in Rini's polymorphism.xml (used in PolymorphismWfsTest, in the feature with id=f4) but I have no idea how she found it! If it works, we should document it. xs:nillable means that an element with a non-empty content model (e.g. at least one property with minOccurs>=1) can be encoded empty but with am xs:nil="true" attribute. We do not support this. All the schemas we use instead have properties that can be omitted, a content model that can be empty, or a community profile to use a xlink:href to a special URI to represent a missing value. The if_then_else above should let you skip an optional property. Kind regards, Ben. On 21/09/10 22:55, Tara Athan wrote: > Thanks for all these links. I have almost managed to get the syntax I am > looking for. I am still stuck on setting a field to NULL. > This expression parses > <OCQL>if_then_else(equalTo(CAT_DESC, 'No Name'), 'NULL', CAT_DESC)</OCQL> > > This does not > <OCQL>if_then_else(equalTo(CAT_DESC, 'No Name'), NULL, CAT_DESC)</OCQL> > > Am I approaching this wrong? > > As I understand it, "nillable" in GML means the element may be missing. Is > there some other way to cause an element to be conditionally omitted? > > Tara -- Ben Caradoc-Davies <ben.caradoc-dav...@csiro.au> Software Engineering Team Leader CSIRO Earth Science and Resource Engineering Australian Resources Research Centre ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
