http://lucene.apache.org/lucene-parent/lucene-expressions: Dynamically computed values to sort/facet/search on based on a pluggable grammar. (The Apache Software Foundation) 
public final class org.apache.lucene.expressions.SimpleBindings extends org.apache.lucene.expressions.Bindings
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.expressions.SimpleBindings
  super_class: org.apache.lucene.expressions.Bindings
{
  final java.util.Map<java.lang.String, java.lang.Object> map;
    descriptor: Ljava/util/Map;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;

  private static volatile int[] $SWITCH_TABLE$org$apache$lucene$search$SortField$Type;
    descriptor: [I
    flags: (0x104a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE, ACC_SYNTHETIC

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
         0: .line 50
            aload 0 /* this */
            invokespecial org.apache.lucene.expressions.Bindings.<init>:()V
         1: .line 47
            aload 0 /* this */
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            putfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
         2: .line 50
            return
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/lucene/expressions/SimpleBindings;

  public void add(org.apache.lucene.search.SortField);
    descriptor: (Lorg/apache/lucene/search/SortField;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
        start local 1 // org.apache.lucene.search.SortField sortField
         0: .line 59
            aload 0 /* this */
            getfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
            aload 1 /* sortField */
            invokevirtual org.apache.lucene.search.SortField.getField:()Ljava/lang/String;
            aload 1 /* sortField */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 60
            return
        end local 1 // org.apache.lucene.search.SortField sortField
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lorg/apache/lucene/expressions/SimpleBindings;
            0    2     1  sortField  Lorg/apache/lucene/search/SortField;
    MethodParameters:
           Name  Flags
      sortField  

  public void add(java.lang.String, org.apache.lucene.search.DoubleValuesSource);
    descriptor: (Ljava/lang/String;Lorg/apache/lucene/search/DoubleValuesSource;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
        start local 1 // java.lang.String name
        start local 2 // org.apache.lucene.search.DoubleValuesSource source
         0: .line 65
            aload 0 /* this */
            getfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
            aload 1 /* name */
            aload 2 /* source */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
            return
        end local 2 // org.apache.lucene.search.DoubleValuesSource source
        end local 1 // java.lang.String name
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lorg/apache/lucene/expressions/SimpleBindings;
            0    1     1    name  Ljava/lang/String;
            0    1     2  source  Lorg/apache/lucene/search/DoubleValuesSource;
    MethodParameters:
        Name  Flags
      name    
      source  

  public void add(java.lang.String, org.apache.lucene.expressions.Expression);
    descriptor: (Ljava/lang/String;Lorg/apache/lucene/expressions/Expression;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
        start local 1 // java.lang.String name
        start local 2 // org.apache.lucene.expressions.Expression expression
         0: .line 73
            aload 0 /* this */
            getfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
            aload 1 /* name */
            aload 2 /* expression */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 74
            return
        end local 2 // org.apache.lucene.expressions.Expression expression
        end local 1 // java.lang.String name
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/apache/lucene/expressions/SimpleBindings;
            0    2     1        name  Ljava/lang/String;
            0    2     2  expression  Lorg/apache/lucene/expressions/Expression;
    MethodParameters:
            Name  Flags
      name        
      expression  

  public org.apache.lucene.search.DoubleValuesSource getDoubleValuesSource(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/apache/lucene/search/DoubleValuesSource;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
        start local 1 // java.lang.String name
         0: .line 78
            aload 0 /* this */
            getfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
            aload 1 /* name */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            astore 2 /* o */
        start local 2 // java.lang.Object o
         1: .line 79
            aload 2 /* o */
            ifnonnull 3
         2: .line 80
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Invalid reference '"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* name */
            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;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 81
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 2 /* o */
            instanceof org.apache.lucene.expressions.Expression
            ifeq 5
         4: .line 82
            aload 2 /* o */
            checkcast org.apache.lucene.expressions.Expression
            aload 0 /* this */
            invokevirtual org.apache.lucene.expressions.Expression.getDoubleValuesSource:(Lorg/apache/lucene/expressions/Bindings;)Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
         5: .line 83
      StackMap locals:
      StackMap stack:
            aload 2 /* o */
            instanceof org.apache.lucene.search.DoubleValuesSource
            ifeq 7
         6: .line 84
            aload 2 /* o */
            checkcast org.apache.lucene.search.DoubleValuesSource
            areturn
         7: .line 86
      StackMap locals:
      StackMap stack:
            aload 2 /* o */
            checkcast org.apache.lucene.search.SortField
            astore 3 /* field */
        start local 3 // org.apache.lucene.search.SortField field
         8: .line 87
            invokestatic org.apache.lucene.expressions.SimpleBindings.$SWITCH_TABLE$org$apache$lucene$search$SortField$Type:()[I
            aload 3 /* field */
            invokevirtual org.apache.lucene.search.SortField.getType:()Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iaload
            tableswitch { // 1 - 7
                    1: 13
                    2: 14
                    3: 14
                    4: 9
                    5: 11
                    6: 10
                    7: 12
              default: 14
          }
         9: .line 89
      StackMap locals: org.apache.lucene.search.SortField
      StackMap stack:
            aload 3 /* field */
            invokevirtual org.apache.lucene.search.SortField.getField:()Ljava/lang/String;
            invokestatic org.apache.lucene.search.DoubleValuesSource.fromIntField:(Ljava/lang/String;)Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
        10: .line 91
      StackMap locals:
      StackMap stack:
            aload 3 /* field */
            invokevirtual org.apache.lucene.search.SortField.getField:()Ljava/lang/String;
            invokestatic org.apache.lucene.search.DoubleValuesSource.fromLongField:(Ljava/lang/String;)Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
        11: .line 93
      StackMap locals:
      StackMap stack:
            aload 3 /* field */
            invokevirtual org.apache.lucene.search.SortField.getField:()Ljava/lang/String;
            invokestatic org.apache.lucene.search.DoubleValuesSource.fromFloatField:(Ljava/lang/String;)Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
        12: .line 95
      StackMap locals:
      StackMap stack:
            aload 3 /* field */
            invokevirtual org.apache.lucene.search.SortField.getField:()Ljava/lang/String;
            invokestatic org.apache.lucene.search.DoubleValuesSource.fromDoubleField:(Ljava/lang/String;)Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
        13: .line 97
      StackMap locals:
      StackMap stack:
            getstatic org.apache.lucene.search.DoubleValuesSource.SCORES:Lorg/apache/lucene/search/DoubleValuesSource;
            areturn
        14: .line 99
      StackMap locals:
      StackMap stack:
            new java.lang.UnsupportedOperationException
            dup
            invokespecial java.lang.UnsupportedOperationException.<init>:()V
            athrow
        end local 3 // org.apache.lucene.search.SortField field
        end local 2 // java.lang.Object o
        end local 1 // java.lang.String name
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   15     0   this  Lorg/apache/lucene/expressions/SimpleBindings;
            0   15     1   name  Ljava/lang/String;
            1   15     2      o  Ljava/lang/Object;
            8   15     3  field  Lorg/apache/lucene/search/SortField;
    MethodParameters:
      Name  Flags
      name  

  public void validate();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=1
        start local 0 // org.apache.lucene.expressions.SimpleBindings this
         0: .line 108
            aload 0 /* this */
            getfield org.apache.lucene.expressions.SimpleBindings.map:Ljava/util/Map;
            invokeinterface java.util.Map.values:()Ljava/util/Collection;
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 2
            goto 8
      StackMap locals: org.apache.lucene.expressions.SimpleBindings top java.util.Iterator
      StackMap stack:
         1: aload 2
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            astore 1 /* o */
        start local 1 // java.lang.Object o
         2: .line 109
            aload 1 /* o */
            instanceof org.apache.lucene.expressions.Expression
            ifeq 8
         3: .line 110
            aload 1 /* o */
            checkcast org.apache.lucene.expressions.Expression
            astore 3 /* expr */
        start local 3 // org.apache.lucene.expressions.Expression expr
         4: .line 112
            aload 3 /* expr */
            aload 0 /* this */
            invokevirtual org.apache.lucene.expressions.Expression.getDoubleValuesSource:(Lorg/apache/lucene/expressions/Bindings;)Lorg/apache/lucene/search/DoubleValuesSource;
            pop
         5: .line 113
            goto 8
      StackMap locals: org.apache.lucene.expressions.SimpleBindings java.lang.Object java.util.Iterator org.apache.lucene.expressions.Expression
      StackMap stack: java.lang.StackOverflowError
         6: pop
         7: .line 114
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Recursion Error: Cycle detected originating in ("
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 3 /* expr */
            getfield org.apache.lucene.expressions.Expression.sourceText: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;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 3 // org.apache.lucene.expressions.Expression expr
        end local 1 // java.lang.Object o
         8: .line 108
      StackMap locals: org.apache.lucene.expressions.SimpleBindings top java.util.Iterator
      StackMap stack:
            aload 2
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         9: .line 118
            return
        end local 0 // org.apache.lucene.expressions.SimpleBindings this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lorg/apache/lucene/expressions/SimpleBindings;
            2    8     1     o  Ljava/lang/Object;
            4    8     3  expr  Lorg/apache/lucene/expressions/Expression;
      Exception table:
        from    to  target  type
           4     5       6  Class java.lang.StackOverflowError

  static int[] $SWITCH_TABLE$org$apache$lucene$search$SortField$Type();
    descriptor: ()[I
    flags: (0x1008) ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=3, locals=1, args_size=0
         0: .line 46
            getstatic org.apache.lucene.expressions.SimpleBindings.$SWITCH_TABLE$org$apache$lucene$search$SortField$Type:[I
            dup
            ifnull 1
            areturn
      StackMap locals:
      StackMap stack: int[]
         1: pop
            invokestatic org.apache.lucene.search.SortField$Type.values:()[Lorg/apache/lucene/search/SortField$Type;
            arraylength
            newarray 10
            astore 0
         2: aload 0
            getstatic org.apache.lucene.search.SortField$Type.CUSTOM:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            bipush 8
            iastore
         3: goto 5
      StackMap locals: int[]
      StackMap stack: java.lang.NoSuchFieldError
         4: pop
      StackMap locals:
      StackMap stack:
         5: aload 0
            getstatic org.apache.lucene.search.SortField$Type.DOC:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iconst_2
            iastore
         6: goto 8
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
         7: pop
      StackMap locals:
      StackMap stack:
         8: aload 0
            getstatic org.apache.lucene.search.SortField$Type.DOUBLE:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            bipush 7
            iastore
         9: goto 11
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        10: pop
      StackMap locals:
      StackMap stack:
        11: aload 0
            getstatic org.apache.lucene.search.SortField$Type.FLOAT:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iconst_5
            iastore
        12: goto 14
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        13: pop
      StackMap locals:
      StackMap stack:
        14: aload 0
            getstatic org.apache.lucene.search.SortField$Type.INT:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iconst_4
            iastore
        15: goto 17
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        16: pop
      StackMap locals:
      StackMap stack:
        17: aload 0
            getstatic org.apache.lucene.search.SortField$Type.LONG:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            bipush 6
            iastore
        18: goto 20
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        19: pop
      StackMap locals:
      StackMap stack:
        20: aload 0
            getstatic org.apache.lucene.search.SortField$Type.REWRITEABLE:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            bipush 10
            iastore
        21: goto 23
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        22: pop
      StackMap locals:
      StackMap stack:
        23: aload 0
            getstatic org.apache.lucene.search.SortField$Type.SCORE:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iconst_1
            iastore
        24: goto 26
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        25: pop
      StackMap locals:
      StackMap stack:
        26: aload 0
            getstatic org.apache.lucene.search.SortField$Type.STRING:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            iconst_3
            iastore
        27: goto 29
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        28: pop
      StackMap locals:
      StackMap stack:
        29: aload 0
            getstatic org.apache.lucene.search.SortField$Type.STRING_VAL:Lorg/apache/lucene/search/SortField$Type;
            invokevirtual org.apache.lucene.search.SortField$Type.ordinal:()I
            bipush 9
            iastore
        30: goto 32
      StackMap locals:
      StackMap stack: java.lang.NoSuchFieldError
        31: pop
      StackMap locals:
      StackMap stack:
        32: aload 0
            dup
            putstatic org.apache.lucene.expressions.SimpleBindings.$SWITCH_TABLE$org$apache$lucene$search$SortField$Type:[I
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
      Exception table:
        from    to  target  type
           2     3       4  Class java.lang.NoSuchFieldError
           5     6       7  Class java.lang.NoSuchFieldError
           8     9      10  Class java.lang.NoSuchFieldError
          11    12      13  Class java.lang.NoSuchFieldError
          14    15      16  Class java.lang.NoSuchFieldError
          17    18      19  Class java.lang.NoSuchFieldError
          20    21      22  Class java.lang.NoSuchFieldError
          23    24      25  Class java.lang.NoSuchFieldError
          26    27      28  Class java.lang.NoSuchFieldError
          29    30      31  Class java.lang.NoSuchFieldError
}
SourceFile: "SimpleBindings.java"
InnerClasses:
  public final Type = org.apache.lucene.search.SortField$Type of org.apache.lucene.search.SortField