程序包org.apache.hadoop.hdfs的分层结构

程序包分层结构:

• 所有程序包

类分层结构

• java.lang.Object
  • org.apache.hadoop.hdfs.ByteRangeInputStream.URLOpener
  • org.apache.hadoop.fs.CommonConfigurationKeys
    • org.apache.hadoop.hdfs.DFSConfigKeys
  • org.apache.hadoop.conf.Configured (implements org.apache.hadoop.conf.Configurable)
    • org.apache.hadoop.fs.FileSystem (implements java.io.Closeable)
      • org.apache.hadoop.hdfs.DistributedFileSystem
      • org.apache.hadoop.fs.FilterFileSystem
        • org.apache.hadoop.fs.ChecksumFileSystem
          • org.apache.hadoop.hdfs.ChecksumDistributedFileSystem
      • org.apache.hadoop.hdfs.HftpFileSystem (implements org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenRenewer.Renewable)
        • org.apache.hadoop.hdfs.HsftpFileSystem
  • org.apache.hadoop.hdfs.DFSClient (implements java.io.Closeable, org.apache.hadoop.hdfs.protocol.FSConstants)
  • org.apache.hadoop.hdfs.DFSUtil
  • org.apache.hadoop.hdfs.DFSUtil.StaleComparator (implements java.util.Comparator<T>)
  • org.apache.hadoop.hdfs.DistributedFileSystem.DiskStatus
  • org.apache.hadoop.hdfs.HsftpFileSystem.DummyHostnameVerifier (implements javax.net.ssl.HostnameVerifier)
  • java.io.InputStream (implements java.io.Closeable)
    • java.io.FilterInputStream
      • java.io.DataInputStream (implements java.io.DataInput)
        • org.apache.hadoop.fs.FSDataInputStream (implements java.io.Closeable, org.apache.hadoop.fs.HasFileDescriptor, org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable)
          • org.apache.hadoop.hdfs.DFSClient.DFSDataInputStream
    • org.apache.hadoop.fs.FSInputStream (implements org.apache.hadoop.fs.PositionedReadable, org.apache.hadoop.fs.Seekable)
      • org.apache.hadoop.hdfs.ByteRangeInputStream
      • org.apache.hadoop.hdfs.DFSClient.DFSInputStream
      • org.apache.hadoop.fs.FSInputChecker
        • org.apache.hadoop.hdfs.DFSClient.RemoteBlockReader (implements org.apache.hadoop.hdfs.BlockReader)
  • org.apache.hadoop.security.authorize.PolicyProvider
    • org.apache.hadoop.hdfs.HDFSPolicyProvider
  • org.apache.hadoop.security.token.TokenRenewer
    • org.apache.hadoop.hdfs.DFSClient.Renewer
    • org.apache.hadoop.hdfs.HftpFileSystem.TokenManager
      • org.apache.hadoop.hdfs.HsftpFileSystem.TokenManager

接口分层结构

• java.lang.AutoCloseable
  • java.io.Closeable
    • org.apache.hadoop.io.Closeable
      • org.apache.hadoop.hdfs.BlockReader