Hi all, I was wondering whether any of you know any good tutorials online describing how to develop a custom filter plugin. I have been trying to create a latitude/longitude bounding box filter using two NumericRangeFilters in a ChainedFilter object to no avail. No documents are returned by getDocIdSet it seems. I also tried using NumericRangeQueries in a QueryWrapperFilter but still no luck. Do I have to customize the getDocSetId methods in some way? Any help or pointers in the right direction would be appreciated.
Regards, Michael Donelan
