Hello, IIRC both servers (Elasticsearch & Solr) have external analysis chains and also document's field can carry TokenStream from an external analysis chain. So, an integration seems possible without bringing new dependencies.
On Mon, Apr 20, 2026 at 12:12 PM Uwe Schindler via dev < [email protected]> wrote: > Hi, > > in general we are open to include external stemmers into the Lucene code > base (maybe only the adaptor), but the external depenencies should be kept > minimal (not including a ton of utility libraries like Apache > commons-foobar added as transitive dependencies). As far as I understand, > the stemmer classes are not "ready-to use", so to actually include the > filter into your analysis chain you need to add those data files possible > created with the Radixor framework, correct? If we need to shit with many > data files for all those languages, we may need to think about a way to > regenerate them in our code and ship them to have ready-to-use stemmers for > supported languages. > > Small comment about the Lucene code: It has a services file for the > factory, but no module-info.java class file yet. It would be great to add a > module descriptor - also for the Radixor framework, too, because Lucene is > module conformant. This will be mandatory when it needs to be included into > Lucene. > > Uwe > Am 19.04.2026 um 23:30 schrieb Leo Galambos: > > Hello Lucene developers, > > I would like to share a new external project that may be relevant to the > Lucene analysis community: Radixor-Lucene. > > Radixor-Lucene is an adapter for using the Radixor stemmer in Apache > Lucene 10. Radixor builds on ideas from the historical Egothor stemming > line, with a focused implementation aimed at compact compiled runtime data, > deterministic lookup, and practical extension with domain-specific > vocabulary. > > It may be relevant in cases where one would otherwise consider > Stempel-style stemming or Porter-family stemmers. It is a stemming toolkit, > not a full morphological analyzer. > > Project links: > > - > > Radixor: https://leogalambos.github.io/Radixor/ > - > > Radixor-Lucene: https://github.com/leogalambos/Radixor-Lucene > > I would be interested in feedback on whether this is best kept purely as > an external adapter, or whether the Lucene community would see value in it > as part of a broader modernization path for the Stempel-style stemming > space. > > Best regards, > Leo Galambos > > -- > Uwe Schindler > Achterdiek 19, D-28357 Bremenhttps://www.thetaphi.de > eMail: [email protected] > > -- Sincerely yours Mikhail Khludnev
