https://lucene.apache.org/lucene-parent/lucene-join: Lucene Join Module (The Apache Software Foundation) 
class org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight extends org.apache.lucene.search.FilterWeight
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight
  super_class: org.apache.lucene.search.FilterWeight
{
  private final org.apache.lucene.search.join.BitSetProducer parentsFilter;
    descriptor: Lorg/apache/lucene/search/join/BitSetProducer;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.lucene.search.join.ScoreMode scoreMode;
    descriptor: Lorg/apache/lucene/search/join/ScoreMode;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(org.apache.lucene.search.Query, org.apache.lucene.search.Weight, org.apache.lucene.search.join.BitSetProducer, org.apache.lucene.search.join.ScoreMode);
    descriptor: (Lorg/apache/lucene/search/Query;Lorg/apache/lucene/search/Weight;Lorg/apache/lucene/search/join/BitSetProducer;Lorg/apache/lucene/search/join/ScoreMode;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=5
        start local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
        start local 1 // org.apache.lucene.search.Query joinQuery
        start local 2 // org.apache.lucene.search.Weight childWeight
        start local 3 // org.apache.lucene.search.join.BitSetProducer parentsFilter
        start local 4 // org.apache.lucene.search.join.ScoreMode scoreMode
         0: .line 125
            aload 0 /* this */
            aload 1 /* joinQuery */
            aload 2 /* childWeight */
            invokespecial org.apache.lucene.search.FilterWeight.<init>:(Lorg/apache/lucene/search/Query;Lorg/apache/lucene/search/Weight;)V
         1: .line 126
            aload 0 /* this */
            aload 3 /* parentsFilter */
            putfield org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.parentsFilter:Lorg/apache/lucene/search/join/BitSetProducer;
         2: .line 127
            aload 0 /* this */
            aload 4 /* scoreMode */
            putfield org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.scoreMode:Lorg/apache/lucene/search/join/ScoreMode;
         3: .line 128
            return
        end local 4 // org.apache.lucene.search.join.ScoreMode scoreMode
        end local 3 // org.apache.lucene.search.join.BitSetProducer parentsFilter
        end local 2 // org.apache.lucene.search.Weight childWeight
        end local 1 // org.apache.lucene.search.Query joinQuery
        end local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    4     0           this  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;
            0    4     1      joinQuery  Lorg/apache/lucene/search/Query;
            0    4     2    childWeight  Lorg/apache/lucene/search/Weight;
            0    4     3  parentsFilter  Lorg/apache/lucene/search/join/BitSetProducer;
            0    4     4      scoreMode  Lorg/apache/lucene/search/join/ScoreMode;
    MethodParameters:
               Name  Flags
      joinQuery      
      childWeight    
      parentsFilter  
      scoreMode      

  public org.apache.lucene.search.Scorer scorer(org.apache.lucene.index.LeafReaderContext);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/Scorer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
        start local 1 // org.apache.lucene.index.LeafReaderContext context
         0: .line 132
            aload 0 /* this */
            aload 1 /* context */
            invokevirtual org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.scorerSupplier:(Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/ScorerSupplier;
            astore 2 /* scorerSupplier */
        start local 2 // org.apache.lucene.search.ScorerSupplier scorerSupplier
         1: .line 133
            aload 2 /* scorerSupplier */
            ifnonnull 3
         2: .line 134
            aconst_null
            areturn
         3: .line 136
      StackMap locals: org.apache.lucene.search.ScorerSupplier
      StackMap stack:
            aload 2 /* scorerSupplier */
            ldc 9223372036854775807
            invokevirtual org.apache.lucene.search.ScorerSupplier.get:(J)Lorg/apache/lucene/search/Scorer;
            areturn
        end local 2 // org.apache.lucene.search.ScorerSupplier scorerSupplier
        end local 1 // org.apache.lucene.index.LeafReaderContext context
        end local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    4     0            this  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;
            0    4     1         context  Lorg/apache/lucene/index/LeafReaderContext;
            1    4     2  scorerSupplier  Lorg/apache/lucene/search/ScorerSupplier;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      context  

  public org.apache.lucene.search.ScorerSupplier scorerSupplier(org.apache.lucene.index.LeafReaderContext);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/ScorerSupplier;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
        start local 1 // org.apache.lucene.index.LeafReaderContext context
         0: .line 143
            aload 0 /* this */
            getfield org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.in:Lorg/apache/lucene/search/Weight;
            aload 1 /* context */
            invokevirtual org.apache.lucene.search.Weight.scorerSupplier:(Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/ScorerSupplier;
            astore 2 /* childScorerSupplier */
        start local 2 // org.apache.lucene.search.ScorerSupplier childScorerSupplier
         1: .line 144
            aload 2 /* childScorerSupplier */
            ifnonnull 3
         2: .line 145
            aconst_null
            areturn
         3: .line 150
      StackMap locals: org.apache.lucene.search.ScorerSupplier
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.parentsFilter:Lorg/apache/lucene/search/join/BitSetProducer;
            aload 1 /* context */
            invokeinterface org.apache.lucene.search.join.BitSetProducer.getBitSet:(Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/util/BitSet;
            astore 3 /* parents */
        start local 3 // org.apache.lucene.util.BitSet parents
         4: .line 151
            aload 3 /* parents */
            ifnonnull 6
         5: .line 153
            aconst_null
            areturn
         6: .line 156
      StackMap locals: org.apache.lucene.util.BitSet
      StackMap stack:
            new org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight$1
            dup
            aload 0 /* this */
            aload 2 /* childScorerSupplier */
            aload 3 /* parents */
            invokespecial org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight$1.<init>:(Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;Lorg/apache/lucene/search/ScorerSupplier;Lorg/apache/lucene/util/BitSet;)V
            areturn
        end local 3 // org.apache.lucene.util.BitSet parents
        end local 2 // org.apache.lucene.search.ScorerSupplier childScorerSupplier
        end local 1 // org.apache.lucene.index.LeafReaderContext context
        end local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0    7     0                 this  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;
            0    7     1              context  Lorg/apache/lucene/index/LeafReaderContext;
            1    7     2  childScorerSupplier  Lorg/apache/lucene/search/ScorerSupplier;
            4    7     3              parents  Lorg/apache/lucene/util/BitSet;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      context  

  public org.apache.lucene.search.Explanation explain(org.apache.lucene.index.LeafReaderContext, int);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;I)Lorg/apache/lucene/search/Explanation;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
        start local 1 // org.apache.lucene.index.LeafReaderContext context
        start local 2 // int doc
         0: .line 172
            aload 0 /* this */
            aload 1 /* context */
            invokevirtual org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.scorer:(Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/Scorer;
            checkcast org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer
            astore 3 /* scorer */
        start local 3 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer scorer
         1: .line 173
            aload 3 /* scorer */
            ifnull 3
            aload 3 /* scorer */
            invokevirtual org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer.iterator:()Lorg/apache/lucene/search/DocIdSetIterator;
            iload 2 /* doc */
            invokevirtual org.apache.lucene.search.DocIdSetIterator.advance:(I)I
            iload 2 /* doc */
            if_icmpne 3
         2: .line 174
            aload 3 /* scorer */
            aload 1 /* context */
            aload 0 /* this */
            getfield org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.in:Lorg/apache/lucene/search/Weight;
            invokevirtual org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer.explain:(Lorg/apache/lucene/index/LeafReaderContext;Lorg/apache/lucene/search/Weight;)Lorg/apache/lucene/search/Explanation;
            areturn
         3: .line 176
      StackMap locals: org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer
      StackMap stack:
            ldc "Not a match"
            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 3 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer scorer
        end local 2 // int doc
        end local 1 // org.apache.lucene.index.LeafReaderContext context
        end local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;
            0    4     1  context  Lorg/apache/lucene/index/LeafReaderContext;
            0    4     2      doc  I
            1    4     3   scorer  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinScorer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      context  
      doc      

  public org.apache.lucene.search.Matches matches(org.apache.lucene.index.LeafReaderContext, int);
    descriptor: (Lorg/apache/lucene/index/LeafReaderContext;I)Lorg/apache/lucene/search/Matches;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=3
        start local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
        start local 1 // org.apache.lucene.index.LeafReaderContext context
        start local 2 // int doc
         0: .line 183
            aload 0 /* this */
            aload 1 /* context */
            invokevirtual org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight.scorer:(Lorg/apache/lucene/index/LeafReaderContext;)Lorg/apache/lucene/search/Scorer;
            astore 3 /* scorer */
        start local 3 // org.apache.lucene.search.Scorer scorer
         1: .line 184
            aload 3 /* scorer */
            ifnonnull 3
         2: .line 185
            aconst_null
            areturn
         3: .line 187
      StackMap locals: org.apache.lucene.search.Scorer
      StackMap stack:
            aload 3 /* scorer */
            invokevirtual org.apache.lucene.search.Scorer.twoPhaseIterator:()Lorg/apache/lucene/search/TwoPhaseIterator;
            astore 4 /* twoPhase */
        start local 4 // org.apache.lucene.search.TwoPhaseIterator twoPhase
         4: .line 188
            aload 4 /* twoPhase */
            ifnonnull 7
         5: .line 189
            aload 3 /* scorer */
            invokevirtual org.apache.lucene.search.Scorer.iterator:()Lorg/apache/lucene/search/DocIdSetIterator;
            iload 2 /* doc */
            invokevirtual org.apache.lucene.search.DocIdSetIterator.advance:(I)I
            iload 2 /* doc */
            if_icmpeq 9
         6: .line 190
            aconst_null
            areturn
         7: .line 194
      StackMap locals: org.apache.lucene.search.TwoPhaseIterator
      StackMap stack:
            aload 4 /* twoPhase */
            invokevirtual org.apache.lucene.search.TwoPhaseIterator.approximation:()Lorg/apache/lucene/search/DocIdSetIterator;
            iload 2 /* doc */
            invokevirtual org.apache.lucene.search.DocIdSetIterator.advance:(I)I
            iload 2 /* doc */
            if_icmpne 8
            aload 4 /* twoPhase */
            invokevirtual org.apache.lucene.search.TwoPhaseIterator.matches:()Z
            ifne 9
         8: .line 195
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
         9: .line 198
      StackMap locals:
      StackMap stack:
            getstatic org.apache.lucene.search.MatchesUtils.MATCH_WITH_NO_TERMS:Lorg/apache/lucene/search/Matches;
            areturn
        end local 4 // org.apache.lucene.search.TwoPhaseIterator twoPhase
        end local 3 // org.apache.lucene.search.Scorer scorer
        end local 2 // int doc
        end local 1 // org.apache.lucene.index.LeafReaderContext context
        end local 0 // org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   10     0      this  Lorg/apache/lucene/search/join/ToParentBlockJoinQuery$BlockJoinWeight;
            0   10     1   context  Lorg/apache/lucene/index/LeafReaderContext;
            0   10     2       doc  I
            1   10     3    scorer  Lorg/apache/lucene/search/Scorer;
            4   10     4  twoPhase  Lorg/apache/lucene/search/TwoPhaseIterator;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      context  
      doc      
}
SourceFile: "ToParentBlockJoinQuery.java"
NestHost: org.apache.lucene.search.join.ToParentBlockJoinQuery
InnerClasses:
  BlockJoinScorer = org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinScorer of org.apache.lucene.search.join.ToParentBlockJoinQuery
  private BlockJoinWeight = org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight of org.apache.lucene.search.join.ToParentBlockJoinQuery
  org.apache.lucene.search.join.ToParentBlockJoinQuery$BlockJoinWeight$1