程序包org.apache.hadoop.hdfs.server.protocol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.protocol.Block (implements java.lang.Comparable<T>, org.apache.hadoop.io.Writable)
    • org.apache.hadoop.hdfs.server.protocol.BlockMetaDataInfo
  • org.apache.hadoop.hdfs.server.protocol.BlockRecoveryInfo (implements org.apache.hadoop.io.Writable)
  • org.apache.hadoop.hdfs.server.protocol.BlocksWithLocations (implements org.apache.hadoop.io.Writable)
  • org.apache.hadoop.hdfs.server.protocol.BlocksWithLocations.BlockWithLocations (implements org.apache.hadoop.io.Writable)
  • org.apache.hadoop.hdfs.server.protocol.DatanodeCommand (implements org.apache.hadoop.io.Writable)
    • org.apache.hadoop.hdfs.server.protocol.BalancerBandwidthCommand
    • org.apache.hadoop.hdfs.server.protocol.BlockCommand
    • org.apache.hadoop.hdfs.server.protocol.KeyUpdateCommand
    • org.apache.hadoop.hdfs.server.protocol.UpgradeCommand
  • org.apache.hadoop.hdfs.protocol.DatanodeID (implements org.apache.hadoop.io.WritableComparable<T>)
    • org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration (implements org.apache.hadoop.io.Writable)
  • org.apache.hadoop.hdfs.server.common.StorageInfo
    • org.apache.hadoop.hdfs.server.protocol.NamespaceInfo (implements org.apache.hadoop.io.Writable)
  • java.lang.Throwable (implements java.io.Serializable)
    • java.lang.Exception
      • java.io.IOException
        • org.apache.hadoop.hdfs.server.protocol.DisallowedDatanodeException

接口分层结构

• org.apache.hadoop.ipc.VersionedProtocol
  • org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol
  • org.apache.hadoop.hdfs.server.protocol.InterDatanodeProtocol
  • org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol