# Hierarchy For Package org.apache.lucene.index

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.lucene.index.CheckIndex (implements java.io.Closeable)
  - org.apache.lucene.index.CheckIndex.Level
  - org.apache.lucene.index.CheckIndex.Options
  - org.apache.lucene.index.CheckIndex.Status
  - org.apache.lucene.index.CheckIndex.Status.DocValuesStatus
  - org.apache.lucene.index.CheckIndex.Status.FieldInfoStatus
  - org.apache.lucene.index.CheckIndex.Status.FieldNormStatus
  - org.apache.lucene.index.CheckIndex.Status.IndexSortStatus
  - org.apache.lucene.index.CheckIndex.Status.LiveDocStatus
  - org.apache.lucene.index.CheckIndex.Status.PointsStatus
  - org.apache.lucene.index.CheckIndex.Status.SegmentInfoStatus
  - org.apache.lucene.index.CheckIndex.Status.SoftDeletesStatus
  - org.apache.lucene.index.CheckIndex.Status.StoredFieldStatus
  - org.apache.lucene.index.CheckIndex.Status.TermIndexStatus
  - org.apache.lucene.index.CheckIndex.Status.TermVectorStatus
  - org.apache.lucene.index.CheckIndex.Status.VectorValuesStatus
  - org.apache.lucene.index.CheckIndex.VerifyPointsVisitor (implements org.apache.lucene.index.PointValues.IntersectVisitor)
  - org.apache.lucene.index.DocIDMerger<T>
  - org.apache.lucene.index.DocIDMerger.Sub
  - org.apache.lucene.search.DocIdSet (implements org.apache.lucene.util.Accountable)
    - org.apache.lucene.index.DocsWithFieldSet
  - org.apache.lucene.search.DocIdSetIterator
    - org.apache.lucene.index.BinaryDocValues
      - org.apache.lucene.index.FilterBinaryDocValues
    - org.apache.lucene.index.KnnVectorValues.DocIndexIterator
      - org.apache.lucene.index.SortingCodecReader.SortingValuesIterator
    - org.apache.lucene.index.NumericDocValues
      - org.apache.lucene.index.FilterNumericDocValues
    - org.apache.lucene.index.PostingsEnum
      - org.apache.lucene.index.FilterLeafReader.FilterPostingsEnum (implements org.apache.lucene.util.Unwrappable<T>)
      - org.apache.lucene.index.ImpactsEnum (implements org.apache.lucene.index.ImpactsSource)
        - org.apache.lucene.index.SlowImpactsEnum
      - org.apache.lucene.index.MultiPostingsEnum
    - org.apache.lucene.index.SortedDocValues
      - org.apache.lucene.index.FilterSortedDocValues
      - org.apache.lucene.index.MultiDocValues.MultiSortedDocValues
    - org.apache.lucene.index.SortedNumericDocValues
      - org.apache.lucene.index.FilterSortedNumericDocValues
    - org.apache.lucene.index.SortedSetDocValues
      - org.apache.lucene.index.FilterSortedSetDocValues
      - org.apache.lucene.index.MultiDocValues.MultiSortedSetDocValues
  - org.apache.lucene.index.DocValues
  - org.apache.lucene.codecs.DocValuesProducer (implements java.io.Closeable)
    - org.apache.lucene.index.EmptyDocValuesProducer
  - org.apache.lucene.index.DocValuesSkipper
  - org.apache.lucene.index.FieldInfo
  - org.apache.lucene.index.FieldInfos (implements java.lang.Iterable<T>)
  - org.apache.lucene.index.FieldInvertState
  - org.apache.lucene.index.Fields (implements java.lang.Iterable<T>)
    - org.apache.lucene.index.FilterLeafReader.FilterFields
      - org.apache.lucene.index.MappedMultiFields
    - org.apache.lucene.index.MultiFields
  - org.apache.lucene.index.FilterDirectoryReader.DelegatingCacheHelper (implements org.apache.lucene.index.IndexReader.CacheHelper)
  - org.apache.lucene.index.FilterDirectoryReader.SubReaderWrapper
    - org.apache.lucene.index.ExitableDirectoryReader.ExitableSubReaderWrapper
  - org.apache.lucene.index.Impact
  - org.apache.lucene.index.Impacts
  - org.apache.lucene.index.IndexCommit (implements java.lang.Comparable<T>)
  - org.apache.lucene.index.IndexDeletionPolicy
    - org.apache.lucene.index.KeepLastNCommitsDeletionPolicy
    - org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy
    - org.apache.lucene.index.NoDeletionPolicy
    - org.apache.lucene.index.SnapshotDeletionPolicy
      - org.apache.lucene.index.PersistentSnapshotDeletionPolicy
  - org.apache.lucene.index.IndexFileNames
  - org.apache.lucene.index.IndexReader (implements java.io.Closeable)
    - org.apache.lucene.index.CompositeReader
      - org.apache.lucene.index.BaseCompositeReader<R>
        - org.apache.lucene.index.DirectoryReader
          - org.apache.lucene.index.FilterDirectoryReader
            - org.apache.lucene.index.ExitableDirectoryReader
            - org.apache.lucene.index.SoftDeletesDirectoryReaderWrapper
          - org.apache.lucene.index.StandardDirectoryReader
        - org.apache.lucene.index.MultiReader
        - org.apache.lucene.index.ParallelCompositeReader
    - org.apache.lucene.index.LeafReader
      - org.apache.lucene.index.CodecReader
        - org.apache.lucene.index.FilterCodecReader
          - org.apache.lucene.index.SortingCodecReader
        - org.apache.lucene.index.SegmentReader
      - org.apache.lucene.index.FilterLeafReader
        - org.apache.lucene.index.ExitableDirectoryReader.ExitableFilterAtomicReader
      - org.apache.lucene.index.ParallelLeafReader
  - org.apache.lucene.index.IndexReader.CacheKey
  - org.apache.lucene.index.IndexReaderContext
    - org.apache.lucene.index.CompositeReaderContext
    - org.apache.lucene.index.LeafReaderContext
  - org.apache.lucene.index.IndexSorter.DoubleSorter (implements org.apache.lucene.index.IndexSorter)
  - org.apache.lucene.index.IndexSorter.FloatSorter (implements org.apache.lucene.index.IndexSorter)
  - org.apache.lucene.index.IndexSorter.IntSorter (implements org.apache.lucene.index.IndexSorter)
  - org.apache.lucene.index.IndexSorter.LongSorter (implements org.apache.lucene.index.IndexSorter)
  - org.apache.lucene.index.IndexSorter.StringSorter (implements org.apache.lucene.index.IndexSorter)
  - org.apache.lucene.index.IndexUpgrader
  - org.apache.lucene.index.IndexWriter (implements org.apache.lucene.util.Accountable, java.io.Closeable, org.apache.lucene.index.MergePolicy.MergeContext, org.apache.lucene.index.TwoPhaseCommit)
  - org.apache.lucene.index.IndexWriter.DocStats
  - org.apache.lucene.index.KnnVectorValues
    - org.apache.lucene.index.ByteVectorValues
    - org.apache.lucene.index.FloatVectorValues
  - org.apache.lucene.index.LiveIndexWriterConfig
    - org.apache.lucene.index.IndexWriterConfig
  - org.apache.lucene.index.MergePolicy
    - org.apache.lucene.index.FilterMergePolicy (implements org.apache.lucene.util.Unwrappable<T>)
      - org.apache.lucene.index.OneMergeWrappingMergePolicy
        - org.apache.lucene.index.SoftDeletesRetentionMergePolicy
      - org.apache.lucene.index.UpgradeIndexMergePolicy
    - org.apache.lucene.index.LogMergePolicy
      - org.apache.lucene.index.LogByteSizeMergePolicy
      - org.apache.lucene.index.LogDocMergePolicy
    - org.apache.lucene.index.NoMergePolicy
    - org.apache.lucene.index.TieredMergePolicy
  - org.apache.lucene.index.MergePolicy.MergeSpecification
  - org.apache.lucene.index.MergePolicy.OneMerge
  - org.apache.lucene.index.MergePolicy.OneMergeProgress
  - org.apache.lucene.index.MergeScheduler (implements java.io.Closeable)
    - org.apache.lucene.index.ConcurrentMergeScheduler
    - org.apache.lucene.index.NoMergeScheduler
    - org.apache.lucene.index.SerialMergeScheduler
  - org.apache.lucene.index.MergeState
  - org.apache.lucene.index.MultiBits (implements org.apache.lucene.util.Bits)
  - org.apache.lucene.index.MultiDocValues
  - org.apache.lucene.index.MultiLeafReader
  - org.apache.lucene.index.MultiPostingsEnum.EnumWithSlice
  - org.apache.lucene.index.OrdinalMap (implements org.apache.lucene.util.Accountable)
  - org.apache.lucene.index.PointValues
  - org.apache.lucene.index.PrefixCodedTerms (implements org.apache.lucene.util.Accountable)
  - org.apache.lucene.index.PrefixCodedTerms.Builder
  - org.apache.lucene.index.PrefixCodedTerms.TermIterator
  - org.apache.lucene.index.QueryTimeoutImpl (implements org.apache.lucene.index.QueryTimeout)
  - org.apache.lucene.store.RateLimiter
    - org.apache.lucene.index.MergeRateLimiter
  - org.apache.lucene.index.ReaderUtil
  - org.apache.lucene.search.ReferenceManager<G> (implements java.io.Closeable)
    - org.apache.lucene.index.ReaderManager
  - org.apache.lucene.index.SegmentCommitInfo
  - org.apache.lucene.index.SegmentInfo
  - org.apache.lucene.index.SegmentInfos (implements java.lang.Cloneable, java.lang.Iterable<T>)
  - org.apache.lucene.index.SegmentInfos.FindSegmentsFile<T>
  - org.apache.lucene.index.SegmentReadState
  - org.apache.lucene.index.SegmentWriteState
  - org.apache.lucene.index.SimpleMergedSegmentWarmer (implements org.apache.lucene.index.IndexWriter.IndexReaderWarmer)
  - org.apache.lucene.index.SlowCodecReaderWrapper
  - org.apache.lucene.index.Sorter
  - org.apache.lucene.index.Sorter.DocMap
  - org.apache.lucene.index.SortFieldProvider (implements org.apache.lucene.util.NamedSPILoader.NamedSPI)
  - org.apache.lucene.index.StoredFields
  - org.apache.lucene.index.StoredFieldVisitor
  - org.apache.lucene.index.Term (implements org.apache.lucene.util.Accountable, java.lang.Comparable<T>)
  - org.apache.lucene.index.Terms
    - org.apache.lucene.index.FilterLeafReader.FilterTerms
      - org.apache.lucene.index.ExitableDirectoryReader.ExitableTerms
    - org.apache.lucene.index.MultiTerms
  - org.apache.lucene.index.TermsEnum (implements org.apache.lucene.util.BytesRefIterator)
    - org.apache.lucene.index.BaseTermsEnum
      - org.apache.lucene.index.MultiTermsEnum
    - org.apache.lucene.index.FilteredTermsEnum
      - org.apache.lucene.index.AutomatonTermsEnum
      - org.apache.lucene.index.SingleTermsEnum
    - org.apache.lucene.index.FilterLeafReader.FilterTermsEnum
      - org.apache.lucene.index.ExitableDirectoryReader.ExitableTermsEnum
  - org.apache.lucene.index.TermState (implements java.lang.Cloneable)
    - org.apache.lucene.index.OrdTermState
  - org.apache.lucene.index.TermStates
  - org.apache.lucene.index.TermVectors
  - java.lang.Thread (implements java.lang.Runnable)
    - org.apache.lucene.index.ConcurrentMergeScheduler.MergeThread (implements java.lang.Comparable<T>)
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.io.IOException
        - org.apache.lucene.index.CorruptIndexException
        - java.io.FileNotFoundException
          - org.apache.lucene.index.IndexNotFoundException
        - org.apache.lucene.index.IndexFormatTooNewException
        - org.apache.lucene.index.IndexFormatTooOldException
        - org.apache.lucene.index.MergePolicy.MergeAbortedException
        - org.apache.lucene.index.TwoPhaseCommitTool.CommitFailException
        - org.apache.lucene.index.TwoPhaseCommitTool.PrepareCommitFailException
      - java.lang.RuntimeException
        - org.apache.lucene.index.CheckIndex.CheckIndexException
        - org.apache.lucene.index.ExitableDirectoryReader.ExitingReaderException
        - org.apache.lucene.index.MergePolicy.MergeException
  - org.apache.lucene.index.TieredMergePolicy.MergeScore
  - org.apache.lucene.index.TwoPhaseCommitTool

## Interface Hierarchy

- java.lang.Cloneable
  - org.apache.lucene.index.PointValues.PointTree
- org.apache.lucene.index.ImpactsSource
- org.apache.lucene.index.IndexableField
- org.apache.lucene.index.IndexableFieldType
- org.apache.lucene.index.IndexReader.CacheHelper
- org.apache.lucene.index.IndexReader.ClosedListener
- org.apache.lucene.index.IndexSorter
- org.apache.lucene.index.IndexSorter.ComparableProvider
- org.apache.lucene.index.IndexSorter.DocComparator
- org.apache.lucene.index.IndexSorter.NumericDocValuesProvider
- org.apache.lucene.index.IndexSorter.SortedDocValuesProvider
- org.apache.lucene.index.IndexWriter.IndexReaderWarmer
- org.apache.lucene.index.IndexWriterEventListener
- org.apache.lucene.index.MergePolicy.MergeContext
- org.apache.lucene.index.MergeScheduler.MergeSource
- org.apache.lucene.index.MergeState.DocMap
- org.apache.lucene.index.PointValues.IntersectVisitor
- org.apache.lucene.index.QueryTimeout
- org.apache.lucene.index.TwoPhaseCommit

## Enum Class Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.lang.constant.Constable, java.io.Serializable)
    - org.apache.lucene.index.DocValuesSkipIndexType
    - org.apache.lucene.index.DocValuesType
    - org.apache.lucene.index.FilteredTermsEnum.AcceptStatus
    - org.apache.lucene.index.IndexOptions
    - org.apache.lucene.index.IndexWriterConfig.OpenMode
    - org.apache.lucene.index.MergePolicy.OneMergeProgress.PauseReason
    - org.apache.lucene.index.MergeTrigger
    - org.apache.lucene.index.PointValues.Relation
    - org.apache.lucene.index.StoredFieldVisitor.Status
    - org.apache.lucene.index.TermsEnum.SeekStatus
    - org.apache.lucene.index.VectorEncoding
    - org.apache.lucene.index.VectorSimilarityFunction

## Record Class Hierarchy

- java.lang.Object
  - java.lang.Record
    - org.apache.lucene.index.LeafMetaData
    - org.apache.lucene.index.ReaderSlice
    - org.apache.lucene.index.StoredFieldDataInput