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  1. Lucene - Core
  2. LUCENE-446

search.function - (1) score based on field value, (2) simple score customizability

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Details

    • New Feature
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 2.2
    • core/search
    • None
    • Patch Available

    Description

      FunctionQuery can return a score based on a field's value or on it's ordinal value.

      FunctionFactory subclasses define the details of the function. There is currently a LinearFloatFunction (a line specified by slope and intercept).

      Field values are typically obtained from FieldValueSourceFactory. Implementations include FloatFieldSource, IntFieldSource, and OrdFieldSource.

      Attachments

        1. function.zip
          9 kB
          Yonik Seeley
        2. function.zip
          9 kB
          Yonik Seeley
        3. function.patch.txt
          93 kB
          Doron Cohen
        4. function.patch.txt
          93 kB
          Doron Cohen
        5. function.patch.txt
          117 kB
          Doron Cohen

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              doronc Doron Cohen
              yseeley@gmail.com Yonik Seeley
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              Dates

                Created:
                Updated:
                Resolved: