edu.umd.cloud9.example.hbase

Class HBaseWordCount

java.lang.Object

org.apache.hadoop.conf.Configured

edu.umd.cloud9.example.hbase.HBaseWordCount

All Implemented Interfaces:

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

public class HBaseWordCount
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Simple word count demo using HBase for storage.

Author:

Jimmy Lin

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HBaseWordCount.MyTableReducer

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	CF
static byte[]	COUNT
static String[]	FAMILIES

Constructor Summary

Constructors

Constructor and Description
HBaseWordCount() Creates an instance of this tool.

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args) Dispatches command-line arguments to the tool via the ToolRunner.
int	run(String[] args) Runs this tool.

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

FAMILIES

public static final String[] FAMILIES

CF

public static final byte[] CF

COUNT

public static final byte[] COUNT

Constructor Detail

HBaseWordCount

public HBaseWordCount()

Creates an instance of this tool.

Method Detail

run

public int run(String[] args)
        throws Exception

Runs this tool.

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

Exception

main

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

Dispatches command-line arguments to the tool via the ToolRunner.

Throws:

Exception