# Hierarchy For Package org.apache.lucene.search.join

## Class Hierarchy

- java.lang.Object
  - org.apache.lucene.search.join.BlockJoinSelector
  - org.apache.lucene.search.join.CheckJoinIndex
  - org.apache.lucene.search.IndexSearcher
    - org.apache.lucene.search.join.ToParentBlockJoinIndexSearcher
  - org.apache.lucene.search.join.JoinUtil
  - org.apache.lucene.search.Query (implements java.lang.Cloneable)
    - org.apache.lucene.search.Filter
      - org.apache.lucene.search.join.BitDocIdSetFilter (implements org.apache.lucene.search.join.BitSetProducer)
        - org.apache.lucene.search.join.BitDocIdSetCachingWrapperFilter
    - org.apache.lucene.search.join.ToChildBlockJoinQuery
    - org.apache.lucene.search.join.ToParentBlockJoinQuery
  - org.apache.lucene.search.join.QueryBitSetProducer (implements org.apache.lucene.search.join.BitSetProducer)
  - org.apache.lucene.search.Scorer
    - org.apache.lucene.search.join.ToParentBlockJoinQuery.ChildrenMatchesScorer
  - org.apache.lucene.search.SortField
    - org.apache.lucene.search.join.ToParentBlockJoinSortField
  - org.apache.lucene.search.join.ToParentBlockJoinCollector (implements org.apache.lucene.search.Collector)

## Interface Hierarchy

- org.apache.lucene.search.join.BitSetProducer

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.apache.lucene.search.join.BlockJoinSelector.Type
    - org.apache.lucene.search.join.ScoreMode

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