org.apache.hadoop.hdfs.server.protocol

类 KeyUpdateCommand

java.lang.Object

org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

org.apache.hadoop.hdfs.server.protocol.KeyUpdateCommand

所有已实现的接口:

Writable

public class KeyUpdateCommand
extends DatanodeCommand

字段概要

从类继承的字段 org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

FINALIZE, REGISTER

构造器概要

构造器

构造器和说明
KeyUpdateCommand(ExportedBlockKeys keys)

方法概要

方法

限定符和类型	方法和说明
ExportedBlockKeys	getExportedKeys()
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

getAction

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

KeyUpdateCommand

public KeyUpdateCommand(ExportedBlockKeys keys)

方法详细资料

getExportedKeys

public ExportedBlockKeys getExportedKeys()

write

public void write(DataOutput out)
           throws IOException

从接口复制的说明: Writable

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

覆盖:

write 在类中 DatanodeCommand

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

从接口复制的说明: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者:

readFields 在接口中 Writable

覆盖:

readFields 在类中 DatanodeCommand

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException