[ https://issues.apache.org/jira/browse/LUCENE-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Muir updated LUCENE-2090: -------------------------------- Attachment: LUCENE-2090_TermRef_flex.patch Attached is a patch to TermRef to implement endsWith() this is a huge win on flex, even though constant suffix gain is very minor on trunk, because it avoids unicode conversion (char[]) for the worst cases that must do lots of comparisons. *N 1705.7ms avg -> 1195.4ms avg *NNNNNN 1844.9ms avg -> 1192.3ms avg it doesn't really matter if the suffix is short, if there is a way in FilteredTermsEnum.accept() for a multitermquery to accept/reject a term without unicode conversion, it helps a lot. in my opinion, this is the cleanest way to improve these cases, other crazy ideas i have tossed around out here like the iterative "reader-like" conversion or even TermRef substring matching will probably not gain much more over this, will be a lot more complex, and only apply to automatonquery. Mike, if you get a chance to review, this, I'll commit it to flex branch (the tests pass). > convert automaton to char[] based processing and TermRef / TermsEnum api > ------------------------------------------------------------------------ > > Key: LUCENE-2090 > URL: https://issues.apache.org/jira/browse/LUCENE-2090 > Project: Lucene - Java > Issue Type: Improvement > Components: Search > Reporter: Robert Muir > Priority: Minor > Fix For: 3.1 > > Attachments: LUCENE-2090_TermRef_flex.patch > > > The automaton processing is currently done with String, mostly because > TermEnum is based on String. > it is easy to change the processing to work with char[], since behind the > scenes this is used anyway. > in general I think we should make sure char[] based processing is exposed in > the automaton pkg anyway, for things like pattern-based tokenizers and such. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org