uschindler opened a new issue, #13388: URL: https://github.com/apache/lucene/issues/13388
### Description Followup of #13385: While reviewing #13385 I stumbled on the same issue I had several times while building a intervals query parser for patent search (a Solr plugin for a customer). There is no way to get an IntervalsSource that matches no intervals, so it will make one clause of a complex IntervalQuery consisting of serveral clauses be a non-match. One example where I hit this: We expand wildcards and filter some terms from expanding (like adding a limit on number of terms or similar), but when trying to build an empty clause it's impossible. The easy "workaround" in Lucene/Solr 9.x is to use this class, which is unfortunately pkg private: https://github.com/expani/lucene/blob/1ee4f8a1115d1de623f242014681032d87ed2c1e/lucene/queries/src/java/org/apache/lucene/queries/intervals/NoMatchIntervalsSource.java To get an instance there's a workaround, but its undocumented: public static IntervalsSource Intervals#atLeast(int minShouldMatch, IntervalsSource... sources). You can misuse it by passing 1 and an empty array: Intervals.atLeast(1) I wonder how this differs from `IntervalBuilder#NO_INTERVALS`, which was made public in #13385. The implementations of both classes differ: one returns an iterator, which is empty, the other one returns `null`. I'd suggest to merge those implementations and instead of exposing a constant to end user add another static method like Intervals#noMatch("reason"). We should revert #13385 and prefer a method instead of a constant. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
