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  1. Lucene - Core
  2. LUCENE-8286

UnifiedHighlighter should support the new Weight.matches API for better match accuracy

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 7.5
    • modules/highlighter
    • None
    • New

    Description

      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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              dsmiley David Smiley
              dsmiley David Smiley
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