Hi all,
I started playing around with adding parameter info to FunctionName today. I
attached a very rough page to this issue:
http://jira.codehaus.org/browse/GEOT-3569
By no means complete or ready to commit, but wanted to post it to foster
discussion and get some initial feedback.
So basically I tried to follow Jody's advice and reuse on of the existing
"parameter" classes we have, which actually turned out to be troublesome.
Basically here are the candidates i could find:
1. org.geotools.data.Parameter
2. org.opengis.parameter.ParameterDescriptor
1 would work generally but it is declared in gt main wheras the function
interface lives in gt-opengis.
2 sort of works but is (a) an absolute nightmare to program against
(getName() not returning a string, etc..). And it does not really allow me
to set min and max occurs cleanly. And quite honestly is really overkill for
what we need.
So moving forward i see the following possibilities:
1. Stick with ParameterDescriptor even though it is really messy
2. Factor out an interface for org.geotools.data.Parameter into gt-opengis
3. Roll our own new interface for Function parameters
4. Use some alternative that i did not find.
Thanks all. Feedback welcome.
--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
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