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From "David Smiley (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-8286) UnifiedHighlighter should support the new Weight.matches API for better match accuracy
Date Tue, 01 May 2018 17:23:00 GMT
David Smiley created LUCENE-8286:
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             Summary: UnifiedHighlighter should support the new Weight.matches API for better
match accuracy
                 Key: LUCENE-8286
                 URL: https://issues.apache.org/jira/browse/LUCENE-8286
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/highlighter
            Reporter: David Smiley


The new Weight.matches() API should allow the UnifiedHighlighter to more accurately highlight
some BooleanQuery patterns correctly -- see LUCENE-7903.

In addition, this API should make the job of highlighting easier, reducing the LOC and related
complexities, especially the UH's PhraseHelper.  Note: reducing/removing PhraseHelper is not
a near-term goal since Weight.matches is experimental and incomplete, and perhaps we'll discover
some gaps in flexibility/functionality.

This issue should introduce a new UnifiedHighlighter.HighlightFlag enum option for this method
of highlighting.   Perhaps call it {{WEIGHT_MATCHES}}?  Longer term it could go away and it'll
be implied if you specify enum values for PHRASES & MULTI_TERM_QUERY?



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