Hi I'm trying to get my (overly complex and strange) product IDs sorting properly in Solr.
Approaches I've tried so far, that I've given up on for various reasons: --Normalizing/padding the IDs so they naturally sort alphabetically/alphanumerically. --Splitting the ID into multiple Solr fields and sending a longer, multi-field "sort" argument in the GET request. --(both of those approaches do work "most of the time", but aren't quite perfect) However, in another project, I already have a <code>Comparble</code> class defined in Java that represents a ProductID and does sort them correctly every time. It's not yet in lucene/solr, though. So I'm trying to make a FieldType plugin for Solr that uses the existing ProductID class/datatype. I need some help extending the lucene FieldComparator class. I don't know much about the rest of the solr / lucene codebase, so I'm fumbling around a bit, especially with the required setNextReader() method. setNextReader() looks like it checks the FieldCache to see if this value is there already, otherwise grabs a bunch of documents from the index. I think I should call some form of FieldCache.getCustom() for this, but FieldCache.getCustom() itself accepts a comparator as an argument, and is marked as "@deprecated Please implement FieldComparatorSource directly, instead" ... but isn't that what I'm doing? So, I'm just a bit confused. Any help? Specifically, any help implementing a setNextReader() method in a customComparator? (solr 1.4.1 / lucene 2.9.3) Thanks, Brad
