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Michael McCandless commented on LUCENE-6228: -------------------------------------------- Can we access the Query from this new interface? And I think we do need getChildren here? How else would a collector find all child scorers? > Do not expose full-fledged scorers in LeafCollector.setScorer > ------------------------------------------------------------- > > Key: LUCENE-6228 > URL: https://issues.apache.org/jira/browse/LUCENE-6228 > Project: Lucene - Core > Issue Type: Improvement > Reporter: Adrien Grand > Assignee: Adrien Grand > Fix For: 5.2, 6.0 > > Attachments: LUCENE-6228.patch, LUCENE-6228.patch, LUCENE-6228.patch, > LUCENE-6228.patch > > > Currently LeafCollector.setScorer takes a Scorer, which I don't like because > several methods should never be called in the context of a Collector (like > nextDoc or advance). > I think it's even more trappy for methods that might seem to work in some > particular cases but will not work in the general case, like getChildren > which will not work if you have a specialized BulkScorer or iterating over > positions which will not work if you are in a MultiCollector and another leaf > collector consumes positions too. > So I think we should restrict what can be seen from a collector to avoid such > traps. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org