Package com.atlassian.confluence.internal.index.lucene

Class EdgeIndexSimilarity

java.lang.Object
org.apache.lucene.search.similarities.Similarity
org.apache.lucene.search.similarities.TFIDFSimilarity
org.apache.lucene.search.similarities.DefaultSimilarity
com.atlassian.confluence.internal.index.lucene.EdgeIndexSimilarity
public class EdgeIndexSimilarity extends org.apache.lucene.search.similarities.DefaultSimilarity
Similarity class for edge index
Since:
7.17

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.apache.lucene.search.similarities.Similarity

    org.apache.lucene.search.similarities.Similarity.SimScorer, org.apache.lucene.search.similarities.Similarity.SimWeight

  • Field Summary

    Fields inherited from class org.apache.lucene.search.similarities.DefaultSimilarity

    discountOverlaps

  • Constructor Summary

    Constructors
    Constructor
    Description
    EdgeIndexSimilarity()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    float
    coord(int overlap, int maxOverlap)
    All fields in edge index only contain a single value.
    float
    idf(long docFreq, long numDocs)
     
    float
    queryNorm(float sumOfSquaredWeights)
     
    float
    tf(float freq)
     

    Methods inherited from class org.apache.lucene.search.similarities.DefaultSimilarity

    decodeNormValue, encodeNormValue, getDiscountOverlaps, lengthNorm, scorePayload, setDiscountOverlaps, sloppyFreq, toString

    Methods inherited from class org.apache.lucene.search.similarities.TFIDFSimilarity

    computeNorm, computeWeight, idfExplain, idfExplain, simScorer

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • EdgeIndexSimilarity

      public EdgeIndexSimilarity()

  • Method Details

    • coord

      public float coord(int overlap, int maxOverlap)
      All fields in edge index only contain a single value. It is therefore not possible for a single field to match multiple query terms (unless they are all the same). Hence, we can disregard the maxOverlap parameter.
      Overrides:
      coord in class org.apache.lucene.search.similarities.DefaultSimilarity

    • tf

      public float tf(float freq)
      Overrides:
      tf in class org.apache.lucene.search.similarities.DefaultSimilarity

    • idf

      public float idf(long docFreq, long numDocs)
      Overrides:
      idf in class org.apache.lucene.search.similarities.DefaultSimilarity

    • queryNorm

      public float queryNorm(float sumOfSquaredWeights)
      Overrides:
      queryNorm in class org.apache.lucene.search.similarities.DefaultSimilarity