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  1. Lucene - Core
  2. LUCENE-352

[PATCH] NullPointerException when using nested SpanOrQuery in SpanNotQuery

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.4
    • 2.0.0
    • core/search
    • None
    • Operating System: Linux
      Platform: Other

    • 33725

    Description

      Overview description:
      I'm using the span query classes in Lucene to generate higher scores for
      search results where the search terms are closer together. In certain
      situations I want to exclude terms from the span. When I attempt to exclude
      more than one term I get an error.

      The example query I'm using is:

      'brighton AND tourism' -pier -contents

      I construct the query objects and the toString() version is:

      spanNot(spanNear([contents:brighton contents:tourism], 10, false),
      spanOr([contents:pier, contents:road]))

      Steps to reproduce:
      1. Construct a SpanNearQuery (must have at least one term, but at least two
      makes more sense)
      2. Construct a SpanOrQuery containing two or more terms
      3. Construct a SpanNotQuery to include the first query object and exclude the
      second (SpanOrQuery)
      4. Execute the search

      Actual Results:
      A null pointer exception is thrown while generating the scores within the
      search.

      Stack trace:
      java.lang.NullPointerException
      at
      org.apache.lucene.search.spans.SpanOrQuery$1.doc(SpanOrQuery.java:174)
      at
      org.apache.lucene.search.spans.SpanNotQuery$1.next(SpanNotQuery.java:75)
      at org.apache.lucene.search.spans.SpanScorer.next(SpanScorer.java:50)
      at org.apache.lucene.search.Scorer.score(Scorer.java:37)
      at
      org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:92)
      at org.apache.lucene.search.Hits.getMoreDocs(Hits.java:64)
      at org.apache.lucene.search.Hits.<init>(Hits.java:43)
      at org.apache.lucene.search.Searcher.search(Searcher.java:33)
      at org.apache.lucene.search.Searcher.search(Searcher.java:27)
      at
      com.runtimecollective.search.LuceneSearch.search(LuceneSearch.java:362)

      Expected Resuts:
      It executes the search and results where the first search terms (near query)
      are close together but without the second terms (or query) appearing.

      Attachments

        1. ASF.LICENSE.NOT.GRANTED--patch.txt
          0.5 kB
          Miles Barr
        2. ASF.LICENSE.NOT.GRANTED--TestBasics.java.patch
          3 kB
          Miles Barr
        3. ASF.LICENSE.NOT.GRANTED--TestBasicsPatch2.txt
          2 kB
          Paul Elschot
        4. LUCENE-352-consolidated-SpanNot-NPE.patch
          4 kB
          Chris M. Hostetter

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              hossman Chris M. Hostetter
              miles@runtime-collective.com Miles Barr
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              Dates

                Created:
                Updated:
                Resolved: