# Hierarchy For Package org.apache.hadoop.hdfs.server.datanode.fsdataset

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.AvailableSpaceVolumeChoosingPolicy<V> (implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.hdfs.server.datanode.fsdataset.VolumeChoosingPolicy<V>)
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi.Factory<D>
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi.FsVolumeReferences (implements java.io.Closeable, java.lang.Iterable<T>)
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi.ScanInfo (implements java.lang.Comparable<T>)
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi.VolumeCheckContext
  - java.io.InputStream (implements java.io.Closeable)
    - java.io.FilterInputStream
      - org.apache.hadoop.hdfs.server.datanode.fsdataset.LengthInputStream
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.ReplicaInputStreams (implements java.io.Closeable)
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.ReplicaOutputStreams (implements java.io.Closeable)
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.RoundRobinVolumeChoosingPolicy<V> (implements org.apache.hadoop.hdfs.server.datanode.fsdataset.VolumeChoosingPolicy<V>)

## Interface Hierarchy

- java.lang.AutoCloseable
  - java.io.Closeable
    - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeReference
    - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi.BlockIterator
- org.apache.hadoop.hdfs.server.datanode.checker.Checkable<K,V>
  - org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi

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