Quoting David Zwiers <[EMAIL PROTECTED]>: > The GML schema is parsed, then and cached. During the actual GML > document > parse, the cached Schema object is extracted from the cache using the > FT > (and if one isn't found ... then parse one up). This fills the gap > between > the expresiveness of XSD and our FT model. And indeed the hope of Gabriel's work is that there will be no gaps between XSD and our FT model, indeed this is the final test. Gabriel - David right now just dumps the things we can't handle into arrays of objects. So the thing to do on your branch is to just modify his code to go straight in to the new object structure. But there's no reason to write a new schema aware parser, as it's already been done. The xdo code can be a bit hard to understand, but hopefully David can point you where things need to be changed, where the hooks are to plug into the full feature model.
Chris > David > > On 10/29/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> > wrote: > > > > Quoting Rob Atkinson <[EMAIL PROTECTED]>: > > > > > > > >That's the tricky part. So I wanted to have something that > doesn't > > existed > > > in > > > >geotools yet, a GML schema parser that produces geotools > FeatureTypes. > > > I'm not sure a GML schema parser is that easy - I've written a > recursive > > > one in the past and its a very non-trivial task. Substitution > group > > > mappings make it even hairier, though its not sure this will turn > out to > > > be a workable mechanism. Its worth noting that a parser is of no > > > practical use unless it can follow import directives. (Community > schemas > > > will be heavily reliant on importing common modules). For this > phase of > > > the project its fine to manually create the configuration IMHO > > > > It is not easy - but we did it twice. > > > > XDO was made for uDig versino 1.0 - david zwiers has taken this off > as a > > separate project. And GTXML was made for our recent OWS-3 project. > > -http://udig.refractions.net/confluence/display/OWS3/GTXML+Article > > > > XDO is fast and uses itself to parse schemas (following imports as > > needed). > > GTXML is focused on usability and uses XSD (and eclipse spin off) > to parse > > schemas. GTXML has also had a start on parsing GML3 ... > > > > > >AFAIK, WFSDataStore could benefit from this too, since it > actually is > > not > > > >parsing GML schemas, but inferring them from a Feature instance, > which > > is ok > > > >for simple Features, but not for complex ones, since you can't > > determine > > > >multiplicity and elements not present in an (xml) feature > instance, you > > need > > > >the actual FeatureType, which in that case should be aquired > from the > > actual > > > >GML schema in xml format. > > > > It is supposed to be parsing the schema ... see above comment about > XDO. > > > > > >Please feel free to send your comments/concerns. > > > > Thanks for the update Gabriel, apparently I am going to be stuck > making > > geotools > > releases next week. But I do hope to catch up with you in a bit. > > > > Jody > > > > > > > > ------------------------------------------------------- > > This SF.Net email is sponsored by the JBoss Inc. > > Get Certified Today * Register for a JBoss Training Course > > Free Certification Exam for All Training Attendees Through End of > 2005 > > Visit http://www.jboss.com/services/certification for more > information > > _______________________________________________ > > Geotools-devel mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/geotools-devel > > > ---------------------------------------------------------- This mail sent through IMP: https://webmail.limegroup.com/ ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
