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  1. Lucene - Core
  2. LUCENE-2057

TopDocsCollector should have bounded generic <T extends ScoreDoc>

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0
    • Component/s: core/search
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      TopDocsCollector was changed to be TopDocsCollector<T>. However it has methods which specifically assume the PQ stores ScoreDoc. Therefore, if someone extends it and defines a type which is not ScoreDoc, things will break.

      We shouldn't put <T> on TopDocsCollector at all, but rather change its ctor to protected TopDocsCollector(PriorityQueue<? extends ScoreDoc> pq). TopDocsCollector should handle ScoreDoc types. If we do this, we'll need to change FieldValueHitQueue's Entry to extend ScoreDoc as well.

        Attachments

        1. scoredoc.patch
          6 kB
          Uwe Schindler

          Activity

            People

            • Assignee:
              thetaphi Uwe Schindler
              Reporter:
              shaie Shai Erera
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              Dates

              • Created:
                Updated:
                Resolved: