org.apache.lucene/lucene-core/8.7.0 : org/apache/lucene/document/FeatureField$SaturationFunction.class

FeatureField$SaturationFunction
https://lucene.apache.org/lucene-parent/lucene-core: Apache Lucene Java Core (The Apache Software Foundation)
Apache License, Version 2.0
final class org.apache.lucene.document.FeatureField$SaturationFunction extends org.apache.lucene.document.FeatureField$FeatureFunction
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.document.FeatureField$SaturationFunction
  super_class: org.apache.lucene.document.FeatureField$FeatureFunction
{
  private final java.lang.String field;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.String feature;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.Float pivot;
    descriptor: Ljava/lang/Float;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(java.lang.String, java.lang.String, java.lang.Float);
    descriptor: (Ljava/lang/String;Ljava/lang/String;Ljava/lang/Float;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
        start local 1 // java.lang.String field
        start local 2 // java.lang.String feature
        start local 3 // java.lang.Float pivot
         0: .line 274
            aload 0 /* this */
            invokespecial org.apache.lucene.document.FeatureField$FeatureFunction.<init>:()V
         1: .line 275
            aload 0 /* this */
            aload 1 /* field */
            putfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
         2: .line 276
            aload 0 /* this */
            aload 2 /* feature */
            putfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
         3: .line 277
            aload 0 /* this */
            aload 3 /* pivot */
            putfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
         4: .line 278
            return
        end local 3 // java.lang.Float pivot
        end local 2 // java.lang.String feature
        end local 1 // java.lang.String field
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    5     0     this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
            0    5     1    field  Ljava/lang/String;
            0    5     2  feature  Ljava/lang/String;
            0    5     3    pivot  Ljava/lang/Float;
    MethodParameters:
         Name  Flags
      field    
      feature  
      pivot    

  public org.apache.lucene.document.FeatureField$FeatureFunction rewrite(org.apache.lucene.index.IndexReader);
    descriptor: (Lorg/apache/lucene/index/IndexReader;)Lorg/apache/lucene/document/FeatureField$FeatureFunction;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
        start local 1 // org.apache.lucene.index.IndexReader reader
         0: .line 282
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            ifnull 2
         1: .line 283
            aload 0 /* this */
            aload 1 /* reader */
            invokespecial org.apache.lucene.document.FeatureField$FeatureFunction.rewrite:(Lorg/apache/lucene/index/IndexReader;)Lorg/apache/lucene/document/FeatureField$FeatureFunction;
            areturn
         2: .line 285
      StackMap locals:
      StackMap stack:
            aload 1 /* reader */
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
            invokestatic org.apache.lucene.document.FeatureField.computePivotFeatureValue:(Lorg/apache/lucene/index/IndexReader;Ljava/lang/String;Ljava/lang/String;)F
            fstore 2 /* newPivot */
        start local 2 // float newPivot
         3: .line 286
            new org.apache.lucene.document.FeatureField$SaturationFunction
            dup
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
            fload 2 /* newPivot */
            invokestatic java.lang.Float.valueOf:(F)Ljava/lang/Float;
            invokespecial org.apache.lucene.document.FeatureField$SaturationFunction.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Float;)V
            areturn
        end local 2 // float newPivot
        end local 1 // org.apache.lucene.index.IndexReader reader
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
            0    4     1    reader  Lorg/apache/lucene/index/IndexReader;
            3    4     2  newPivot  F
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      reader  

  public boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
        start local 1 // java.lang.Object obj
         0: .line 291
            aload 1 /* obj */
            ifnull 1
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            aload 1 /* obj */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            if_acmpeq 2
         1: .line 292
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
         2: .line 294
      StackMap locals:
      StackMap stack:
            aload 1 /* obj */
            checkcast org.apache.lucene.document.FeatureField$SaturationFunction
            astore 2 /* that */
        start local 2 // org.apache.lucene.document.FeatureField$SaturationFunction that
         3: .line 295
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
            aload 2 /* that */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         4: .line 296
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
            aload 2 /* that */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         5: .line 297
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            aload 2 /* that */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         6: .line 295
            iconst_1
            ireturn
      StackMap locals: org.apache.lucene.document.FeatureField$SaturationFunction
      StackMap stack:
         7: iconst_0
            ireturn
        end local 2 // org.apache.lucene.document.FeatureField$SaturationFunction that
        end local 1 // java.lang.Object obj
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
            0    8     1   obj  Ljava/lang/Object;
            3    8     2  that  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
    MethodParameters:
      Name  Flags
      obj   

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
         0: .line 302
            iconst_3
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.field:Ljava/lang/String;
            aastore
            dup
            iconst_1
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.feature:Ljava/lang/String;
            aastore
            dup
            iconst_2
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            aastore
            invokestatic java.util.Objects.hash:([Ljava/lang/Object;)I
            ireturn
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
         0: .line 307
            new java.lang.StringBuilder
            dup
            ldc "SaturationFunction(pivot="
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc ")"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;

  org.apache.lucene.search.similarities.Similarity$SimScorer scorer(float);
    descriptor: (F)Lorg/apache/lucene/search/similarities/Similarity$SimScorer;
    flags: (0x0000) 
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
        start local 1 // float weight
         0: .line 312
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            ifnonnull 2
         1: .line 313
            new java.lang.IllegalStateException
            dup
            ldc "Rewrite first"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 315
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            invokevirtual java.lang.Float.floatValue:()F
            fstore 2 /* pivot */
        start local 2 // float pivot
         3: .line 316
            new org.apache.lucene.document.FeatureField$SaturationFunction$1
            dup
            aload 0 /* this */
            fload 1 /* weight */
            fload 2 /* pivot */
            invokespecial org.apache.lucene.document.FeatureField$SaturationFunction$1.<init>:(Lorg/apache/lucene/document/FeatureField$SaturationFunction;FF)V
            areturn
        end local 2 // float pivot
        end local 1 // float weight
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
            0    4     1  weight  F
            3    4     2   pivot  F
    MethodParameters:
        Name  Flags
      weight  

  org.apache.lucene.search.Explanation explain(java.lang.String, java.lang.String, float, int);
    descriptor: (Ljava/lang/String;Ljava/lang/String;FI)Lorg/apache/lucene/search/Explanation;
    flags: (0x0000) 
    Code:
      stack=8, locals=7, args_size=5
        start local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
        start local 1 // java.lang.String field
        start local 2 // java.lang.String feature
        start local 3 // float weight
        start local 4 // int freq
         0: .line 330
            iload 4 /* freq */
            i2f
            invokestatic org.apache.lucene.document.FeatureField.decodeFeatureValue:(F)F
            fstore 5 /* featureValue */
        start local 5 // float featureValue
         1: .line 331
            aload 0 /* this */
            fload 3 /* weight */
            invokevirtual org.apache.lucene.document.FeatureField$SaturationFunction.scorer:(F)Lorg/apache/lucene/search/similarities/Similarity$SimScorer;
            iload 4 /* freq */
            i2f
            lconst_1
            invokevirtual org.apache.lucene.search.similarities.Similarity$SimScorer.score:(FJ)F
            fstore 6 /* score */
        start local 6 // float score
         2: .line 332
            fload 6 /* score */
            invokestatic java.lang.Float.valueOf:(F)Ljava/lang/Float;
         3: .line 333
            new java.lang.StringBuilder
            dup
            ldc "Saturation function on the "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* field */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " field for the "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 2 /* feature */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " feature, computed as w * S / (S + k) from:"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            iconst_3
            anewarray org.apache.lucene.search.Explanation
            dup
            iconst_0
         4: .line 334
            fload 3 /* weight */
            invokestatic java.lang.Float.valueOf:(F)Ljava/lang/Float;
            ldc "w, weight of this function"
            iconst_0
            anewarray org.apache.lucene.search.Explanation
            invokestatic org.apache.lucene.search.Explanation.match:(Ljava/lang/Number;Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            aastore
            dup
            iconst_1
         5: .line 335
            aload 0 /* this */
            getfield org.apache.lucene.document.FeatureField$SaturationFunction.pivot:Ljava/lang/Float;
            ldc "k, pivot feature value that would give a score contribution equal to w/2"
            iconst_0
            anewarray org.apache.lucene.search.Explanation
            invokestatic org.apache.lucene.search.Explanation.match:(Ljava/lang/Number;Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            aastore
            dup
            iconst_2
         6: .line 336
            fload 5 /* featureValue */
            invokestatic java.lang.Float.valueOf:(F)Ljava/lang/Float;
            ldc "S, feature value"
            iconst_0
            anewarray org.apache.lucene.search.Explanation
            invokestatic org.apache.lucene.search.Explanation.match:(Ljava/lang/Number;Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            aastore
         7: .line 332
            invokestatic org.apache.lucene.search.Explanation.match:(Ljava/lang/Number;Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            areturn
        end local 6 // float score
        end local 5 // float featureValue
        end local 4 // int freq
        end local 3 // float weight
        end local 2 // java.lang.String feature
        end local 1 // java.lang.String field
        end local 0 // org.apache.lucene.document.FeatureField$SaturationFunction this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    8     0          this  Lorg/apache/lucene/document/FeatureField$SaturationFunction;
            0    8     1         field  Ljava/lang/String;
            0    8     2       feature  Ljava/lang/String;
            0    8     3        weight  F
            0    8     4          freq  I
            1    8     5  featureValue  F
            2    8     6         score  F
    MethodParameters:
         Name  Flags
      field    
      feature  
      weight   
      freq     
}
SourceFile: "FeatureField.java"
NestHost: org.apache.lucene.document.FeatureField
InnerClasses:
  abstract FeatureFunction = org.apache.lucene.document.FeatureField$FeatureFunction of org.apache.lucene.document.FeatureField
  final SaturationFunction = org.apache.lucene.document.FeatureField$SaturationFunction of org.apache.lucene.document.FeatureField
  org.apache.lucene.document.FeatureField$SaturationFunction$1
  public abstract SimScorer = org.apache.lucene.search.similarities.Similarity$SimScorer of org.apache.lucene.search.similarities.Similarity
/

org.apache.lucene/ lucene-core/ 8.7.0/ org/apache/lucene/document/FeatureField$SaturationFunction.class
