https://lucene.apache.org/lucene-parent/lucene-core: Apache Lucene Java Core (The Apache Software Foundation) 
class org.apache.lucene.search.DoubleValuesSource$FieldValuesSource extends org.apache.lucene.search.DoubleValuesSource
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.lucene.search.DoubleValuesSource$FieldValuesSource
  super_class: org.apache.lucene.search.DoubleValuesSource
{
  final java.lang.String field;
    descriptor: Ljava/lang/String;
    flags: (0x0010) ACC_FINAL

  final java.util.function.LongToDoubleFunction decoder;
    descriptor: Ljava/util/function/LongToDoubleFunction;
    flags: (0x0010) ACC_FINAL

  private void <init>(java.lang.String, java.util.function.LongToDoubleFunction);
    descriptor: (Ljava/lang/String;Ljava/util/function/LongToDoubleFunction;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // java.lang.String field
        start local 2 // java.util.function.LongToDoubleFunction decoder
         0: .line 360
            aload 0 /* this */
            invokespecial org.apache.lucene.search.DoubleValuesSource.<init>:()V
         1: .line 361
            aload 0 /* this */
            aload 1 /* field */
            putfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
         2: .line 362
            aload 0 /* this */
            aload 2 /* decoder */
            putfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.decoder:Ljava/util/function/LongToDoubleFunction;
         3: .line 363
            return
        end local 2 // java.util.function.LongToDoubleFunction decoder
        end local 1 // java.lang.String field
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    4     1    field  Ljava/lang/String;
            0    4     2  decoder  Ljava/util/function/LongToDoubleFunction;
    MethodParameters:
         Name  Flags
      field    
      decoder  

  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.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // java.lang.Object o
         0: .line 367
            aload 0 /* this */
            aload 1 /* o */
            if_acmpne 1
            iconst_1
            ireturn
         1: .line 368
      StackMap locals:
      StackMap stack:
            aload 1 /* o */
            ifnull 2
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            aload 1 /* o */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            if_acmpeq 3
      StackMap locals:
      StackMap stack:
         2: iconst_0
            ireturn
         3: .line 369
      StackMap locals:
      StackMap stack:
            aload 1 /* o */
            checkcast org.apache.lucene.search.DoubleValuesSource$FieldValuesSource
            astore 2 /* that */
        start local 2 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource that
         4: .line 370
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            aload 2 /* that */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         5: .line 371
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.decoder:Ljava/util/function/LongToDoubleFunction;
            aload 2 /* that */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.decoder:Ljava/util/function/LongToDoubleFunction;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 7
         6: .line 370
            iconst_1
            ireturn
      StackMap locals: org.apache.lucene.search.DoubleValuesSource$FieldValuesSource
      StackMap stack:
         7: iconst_0
            ireturn
        end local 2 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource that
        end local 1 // java.lang.Object o
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    8     1     o  Ljava/lang/Object;
            4    8     2  that  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
    MethodParameters:
      Name  Flags
      o     

  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.search.DoubleValuesSource$FieldValuesSource this
         0: .line 376
            new java.lang.StringBuilder
            dup
            ldc "double("
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)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.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
         0: .line 381
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            aastore
            dup
            iconst_1
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.decoder:Ljava/util/function/LongToDoubleFunction;
            aastore
            invokestatic java.util.Objects.hash:([Ljava/lang/Object;)I
            ireturn
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;

  public org.apache.lucene.search.DoubleValues getValues(org.apache.lucene.index.LeafReaderContext, org.apache.lucene.search.DoubleValues);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;Lorg/apache/lucene/search/DoubleValues;)Lorg/apache/lucene/search/DoubleValues;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // org.apache.lucene.index.LeafReaderContext ctx
        start local 2 // org.apache.lucene.search.DoubleValues scores
         0: .line 386
            aload 1 /* ctx */
            invokevirtual org.apache.lucene.index.LeafReaderContext.reader:()Lorg/apache/lucene/index/LeafReader;
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            invokestatic org.apache.lucene.index.DocValues.getNumeric:(Lorg/apache/lucene/index/LeafReader;Ljava/lang/String;)Lorg/apache/lucene/index/NumericDocValues;
            astore 3 /* values */
        start local 3 // org.apache.lucene.index.NumericDocValues values
         1: .line 387
            new org.apache.lucene.search.DoubleValuesSource$FieldValuesSource$1
            dup
            aload 0 /* this */
            aload 3 /* values */
            invokespecial org.apache.lucene.search.DoubleValuesSource$FieldValuesSource$1.<init>:(Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;Lorg/apache/lucene/index/NumericDocValues;)V
            areturn
        end local 3 // org.apache.lucene.index.NumericDocValues values
        end local 2 // org.apache.lucene.search.DoubleValues scores
        end local 1 // org.apache.lucene.index.LeafReaderContext ctx
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    2     1     ctx  Lorg/apache/lucene/index/LeafReaderContext;
            0    2     2  scores  Lorg/apache/lucene/search/DoubleValues;
            1    2     3  values  Lorg/apache/lucene/index/NumericDocValues;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
        Name  Flags
      ctx     
      scores  

  public boolean needsScores();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
         0: .line 402
            iconst_0
            ireturn
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;

  public boolean isCacheable(org.apache.lucene.index.LeafReaderContext);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // org.apache.lucene.index.LeafReaderContext ctx
         0: .line 407
            aload 1 /* ctx */
            iconst_1
            anewarray java.lang.String
            dup
            iconst_0
            aload 0 /* this */
            getfield org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.field:Ljava/lang/String;
            aastore
            invokestatic org.apache.lucene.index.DocValues.isCacheable:(Lorg/apache/lucene/index/LeafReaderContext;[Ljava/lang/String;)Z
            ireturn
        end local 1 // org.apache.lucene.index.LeafReaderContext ctx
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    1     1   ctx  Lorg/apache/lucene/index/LeafReaderContext;
    MethodParameters:
      Name  Flags
      ctx   

  public org.apache.lucene.search.Explanation explain(org.apache.lucene.index.LeafReaderContext, int, org.apache.lucene.search.Explanation);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;ILorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=4
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // org.apache.lucene.index.LeafReaderContext ctx
        start local 2 // int docId
        start local 3 // org.apache.lucene.search.Explanation scoreExplanation
         0: .line 412
            aload 0 /* this */
            aload 1 /* ctx */
            aconst_null
            invokevirtual org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.getValues:(Lorg/apache/lucene/index/LeafReaderContext;Lorg/apache/lucene/search/DoubleValues;)Lorg/apache/lucene/search/DoubleValues;
            astore 4 /* values */
        start local 4 // org.apache.lucene.search.DoubleValues values
         1: .line 413
            aload 4 /* values */
            iload 2 /* docId */
            invokevirtual org.apache.lucene.search.DoubleValues.advanceExact:(I)Z
            ifeq 3
         2: .line 414
            aload 4 /* values */
            invokevirtual org.apache.lucene.search.DoubleValues.doubleValue:()D
            invokestatic java.lang.Double.valueOf:(D)Ljava/lang/Double;
            aload 0 /* this */
            invokevirtual org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.toString:()Ljava/lang/String;
            iconst_0
            anewarray org.apache.lucene.search.Explanation
            invokestatic org.apache.lucene.search.Explanation.match:(Ljava/lang/Number;Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            areturn
         3: .line 416
      StackMap locals: org.apache.lucene.search.DoubleValues
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.apache.lucene.search.DoubleValuesSource$FieldValuesSource.toString:()Ljava/lang/String;
            iconst_0
            anewarray org.apache.lucene.search.Explanation
            invokestatic org.apache.lucene.search.Explanation.noMatch:(Ljava/lang/String;[Lorg/apache/lucene/search/Explanation;)Lorg/apache/lucene/search/Explanation;
            areturn
        end local 4 // org.apache.lucene.search.DoubleValues values
        end local 3 // org.apache.lucene.search.Explanation scoreExplanation
        end local 2 // int docId
        end local 1 // org.apache.lucene.index.LeafReaderContext ctx
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    4     0              this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    4     1               ctx  Lorg/apache/lucene/index/LeafReaderContext;
            0    4     2             docId  I
            0    4     3  scoreExplanation  Lorg/apache/lucene/search/Explanation;
            1    4     4            values  Lorg/apache/lucene/search/DoubleValues;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
                  Name  Flags
      ctx               
      docId             
      scoreExplanation  

  public org.apache.lucene.search.DoubleValuesSource rewrite(org.apache.lucene.search.IndexSearcher);
    descriptor: (Lorg/apache/lucene/search/IndexSearcher;)Lorg/apache/lucene/search/DoubleValuesSource;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
        start local 1 // org.apache.lucene.search.IndexSearcher searcher
         0: .line 420
            aload 0 /* this */
            areturn
        end local 1 // org.apache.lucene.search.IndexSearcher searcher
        end local 0 // org.apache.lucene.search.DoubleValuesSource$FieldValuesSource this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lorg/apache/lucene/search/DoubleValuesSource$FieldValuesSource;
            0    1     1  searcher  Lorg/apache/lucene/search/IndexSearcher;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      searcher  
}
SourceFile: "DoubleValuesSource.java"
NestHost: org.apache.lucene.search.DoubleValuesSource
InnerClasses:
  private FieldValuesSource = org.apache.lucene.search.DoubleValuesSource$FieldValuesSource of org.apache.lucene.search.DoubleValuesSource
  org.apache.lucene.search.DoubleValuesSource$FieldValuesSource$1