org.apache.hadoop.hbase.mapred

类 RowCounter

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.hbase.mapred.RowCounter

所有已实现的接口:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

@InterfaceAudience.Public
@InterfaceStability.Stable
public class RowCounter
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

A job with a map to count rows. Map outputs table rows IF the input row has columns that have content. Uses org.apache.hadoop.mapred.lib.IdentityReducer

构造器概要

构造器

构造器和说明
RowCounter()

方法概要

方法

限定符和类型	方法和说明
org.apache.hadoop.mapred.JobConf	createSubmittableJob(String[] args)
static void	main(String[] args)
int	run(String[] args)

从类继承的方法 org.apache.hadoop.conf.Configured

getConf, setConf

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.hadoop.conf.Configurable

getConf, setConf

构造器详细资料

RowCounter

public RowCounter()

方法详细资料

createSubmittableJob

public org.apache.hadoop.mapred.JobConf createSubmittableJob(String[] args)
                                                      throws IOException

参数:

args -

返回:

the JobConf

抛出:

IOException

run

public int run(String[] args)
        throws Exception

指定者:

run 在接口中 org.apache.hadoop.util.Tool

抛出:

Exception

main

public static void main(String[] args)
                 throws Exception

参数:

args -

抛出:

Exception