Package org.elasticsearch.search.aggregations.bucket.terms.heuristic

Class ScriptHeuristic

java.lang.Object
org.elasticsearch.search.aggregations.bucket.terms.heuristic.SignificanceHeuristic
org.elasticsearch.search.aggregations.bucket.terms.heuristic.ScriptHeuristic
All Implemented Interfaces:
NamedWriteable, Writeable, org.elasticsearch.common.xcontent.ToXContent, org.elasticsearch.common.xcontent.ToXContentFragment
public class ScriptHeuristic
extends SignificanceHeuristic

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Class Description
    class  ScriptHeuristic.LongAccessor  

    Nested classes/interfaces inherited from interface org.elasticsearch.common.xcontent.ToXContent

    org.elasticsearch.common.xcontent.ToXContent.DelegatingMapParams, org.elasticsearch.common.xcontent.ToXContent.MapParams, org.elasticsearch.common.xcontent.ToXContent.Params

    Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

    Writeable.Reader<V>, Writeable.Writer<V>

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static java.lang.String NAME  
    static org.elasticsearch.common.xcontent.ConstructingObjectParser<ScriptHeuristic,​java.lang.Void> PARSER  

    Fields inherited from interface org.elasticsearch.common.xcontent.ToXContent

    EMPTY_PARAMS

  • Constructor Summary

    Constructors 
    Constructor Description
    ScriptHeuristic​(StreamInput in)
    Read from a stream.
    ScriptHeuristic​(Script script)  

  • Method Summary

    Modifier and Type Method Description
    boolean equals​(java.lang.Object obj)  
    double getScore​(long subsetFreq, long subsetSize, long supersetFreq, long supersetSize)
    Calculates score with a script
    java.lang.String getWriteableName()
    Returns the name of the writeable object
    int hashCode()  
    SignificanceHeuristic rewrite​(QueryShardContext queryShardContext)
    Provides a hook for subclasses to provide a version of the heuristic prepared for execution on data on a shard.
    SignificanceHeuristic rewrite​(InternalAggregation.ReduceContext context)
    Provides a hook for subclasses to provide a version of the heuristic prepared for execution on data on the coordinating node.
    org.elasticsearch.common.xcontent.XContentBuilder toXContent​(org.elasticsearch.common.xcontent.XContentBuilder builder, org.elasticsearch.common.xcontent.ToXContent.Params builderParams)  
    void writeTo​(StreamOutput out)
    Write this into the StreamOutput.

    Methods inherited from class org.elasticsearch.search.aggregations.bucket.terms.heuristic.SignificanceHeuristic

    checkFrequencyValidity

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.elasticsearch.common.xcontent.ToXContentFragment

    isFragment

  • Field Details

  • Constructor Details

  • Method Details

    • writeTo

      public void writeTo​(StreamOutput out) throws java.io.IOException
      Description copied from interface: Writeable
      Write this into the StreamOutput.
      Throws:
      java.io.IOException

    • rewrite

      public SignificanceHeuristic rewrite​(InternalAggregation.ReduceContext context)
      Description copied from class: SignificanceHeuristic
      Provides a hook for subclasses to provide a version of the heuristic prepared for execution on data on the coordinating node.
      Overrides:
      rewrite in class SignificanceHeuristic
      Parameters:
      context - the reduce context on the coordinating node
      Returns:
      a version of this heuristic suitable for execution

    • rewrite

      public SignificanceHeuristic rewrite​(QueryShardContext queryShardContext)
      Description copied from class: SignificanceHeuristic
      Provides a hook for subclasses to provide a version of the heuristic prepared for execution on data on a shard.
      Overrides:
      rewrite in class SignificanceHeuristic
      Parameters:
      queryShardContext - the shard context on the data node
      Returns:
      a version of this heuristic suitable for execution

    • getScore

      public double getScore​(long subsetFreq, long subsetSize, long supersetFreq, long supersetSize)
      Calculates score with a script
      Specified by:
      getScore in class SignificanceHeuristic
      Parameters:
      subsetFreq - The frequency of the term in the selected sample
      subsetSize - The size of the selected sample (typically number of docs)
      supersetFreq - The frequency of the term in the superset from which the sample was taken
      supersetSize - The size of the superset from which the sample was taken (typically number of docs)
      Returns:
      a "significance" score

    • getWriteableName

      public java.lang.String getWriteableName()
      Description copied from interface: NamedWriteable
      Returns the name of the writeable object

    • toXContent

      public org.elasticsearch.common.xcontent.XContentBuilder toXContent​(org.elasticsearch.common.xcontent.XContentBuilder builder, org.elasticsearch.common.xcontent.ToXContent.Params builderParams) throws java.io.IOException
      Throws:
      java.io.IOException

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class java.lang.Object

    • equals

      public boolean equals​(java.lang.Object obj)
      Overrides:
      equals in class java.lang.Object