# Hierarchy For Package org.apache.lucene.store

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.lucene.store.BufferedChecksum (implements java.util.zip.Checksum)
  - org.apache.lucene.store.ByteBuffersDataOutput.ByteBufferRecycler
  - org.apache.lucene.store.DataInput (implements java.lang.Cloneable)
    - org.apache.lucene.store.ByteArrayDataInput
    - org.apache.lucene.store.ByteBuffersDataInput (implements org.apache.lucene.util.Accountable, org.apache.lucene.store.RandomAccessInput)
    - org.apache.lucene.store.IndexInput (implements java.io.Closeable)
      - org.apache.lucene.store.BufferedIndexInput (implements org.apache.lucene.store.RandomAccessInput)
      - org.apache.lucene.store.ByteBuffersIndexInput (implements org.apache.lucene.store.RandomAccessInput)
      - org.apache.lucene.store.ChecksumIndexInput
        - org.apache.lucene.store.BufferedChecksumIndexInput
      - org.apache.lucene.store.FilterIndexInput
    - org.apache.lucene.store.InputStreamDataInput (implements java.io.Closeable)
  - org.apache.lucene.store.DataOutput
    - org.apache.lucene.store.ByteArrayDataOutput
    - org.apache.lucene.store.ByteBuffersDataOutput (implements org.apache.lucene.util.Accountable)
    - org.apache.lucene.store.IndexOutput (implements java.io.Closeable)
      - org.apache.lucene.store.ByteBuffersIndexOutput
      - org.apache.lucene.store.FilterIndexOutput
        - org.apache.lucene.store.RateLimitedIndexOutput
      - org.apache.lucene.store.OutputStreamIndexOutput
    - org.apache.lucene.store.OutputStreamDataOutput (implements java.io.Closeable)
  - org.apache.lucene.store.Directory (implements java.io.Closeable)
    - org.apache.lucene.store.BaseDirectory
      - org.apache.lucene.store.ByteBuffersDirectory
      - org.apache.lucene.store.FSDirectory
        - org.apache.lucene.store.MMapDirectory
        - org.apache.lucene.store.NIOFSDirectory
    - org.apache.lucene.store.FileSwitchDirectory
    - org.apache.lucene.store.FilterDirectory
      - org.apache.lucene.store.LockValidatingDirectoryWrapper
      - org.apache.lucene.store.NRTCachingDirectory (implements org.apache.lucene.util.Accountable)
      - org.apache.lucene.store.SleepingLockWrapper
      - org.apache.lucene.store.TrackingDirectoryWrapper
  - org.apache.lucene.store.Lock (implements java.io.Closeable)
  - org.apache.lucene.store.LockFactory
    - org.apache.lucene.store.FSLockFactory
      - org.apache.lucene.store.NativeFSLockFactory
      - org.apache.lucene.store.SimpleFSLockFactory
    - org.apache.lucene.store.NoLockFactory
    - org.apache.lucene.store.SingleInstanceLockFactory
    - org.apache.lucene.store.VerifyingLockFactory
  - org.apache.lucene.store.LockStressTest
  - org.apache.lucene.store.LockVerifyServer
  - org.apache.lucene.store.RateLimiter
    - org.apache.lucene.store.RateLimiter.SimpleRateLimiter
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.io.IOException
        - org.apache.lucene.store.LockObtainFailedException
        - org.apache.lucene.store.LockReleaseFailedException
      - java.lang.RuntimeException
        - java.lang.IllegalStateException
          - org.apache.lucene.store.AlreadyClosedException

## Interface Hierarchy

- org.apache.lucene.store.IOContext
- org.apache.lucene.store.IOContext.FileOpenHint
- org.apache.lucene.store.RandomAccessInput

## 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.store.DataAccessHint (implements org.apache.lucene.store.IOContext.FileOpenHint)
    - org.apache.lucene.store.FileDataHint (implements org.apache.lucene.store.IOContext.FileOpenHint)
    - org.apache.lucene.store.FileTypeHint (implements org.apache.lucene.store.IOContext.FileOpenHint)
    - org.apache.lucene.store.IOContext.Context
    - org.apache.lucene.store.PreloadHint (implements org.apache.lucene.store.IOContext.FileOpenHint)
    - org.apache.lucene.store.ReadAdvice
    - org.apache.lucene.store.ReadOnceHint (implements org.apache.lucene.store.IOContext.FileOpenHint)

## Record Class Hierarchy

- java.lang.Object
  - java.lang.Record
    - org.apache.lucene.store.FlushInfo
    - org.apache.lucene.store.MergeInfo