org.apache.nutch.mapReduce
Class JobConf

java.lang.Object
  org.apache.nutch.util.NutchConf
      org.apache.nutch.mapReduce.JobConf

public class JobConf

extends NutchConf

A map/reduce job configuration. This names the Mapper, combiner (if any), Partitioner, Reducer, InputFormat, and OutputFormat implementations to be used. It also indicates the set of input files, and where the output files should be written.

Constructor Summary

JobConf()
Construct a map/reduce configuration.

JobConf(File config)
Construct a map/reduce configuration.

JobConf(String config)
Construct a map/reduce configuration.

Method Summary

Class	getCombinerClass()
File	getInputDir()
InputFormat	getInputFormat()
Class	getInputKeyClass()
Class	getInputValueClass()
String	getJar()
static File	getLocalDir()
Class	getMapperClass()
int	getNumMapTasks()
int	getNumReduceTasks()
File	getOutputDir()
OutputFormat	getOutputFormat()
Class	getOutputKeyClass()
Class	getOutputKeyComparatorClass()
Class	getOutputValueClass()
Class	getPartitionerClass()
Class	getReducerClass()
static File	getSystemDir()
static void	main(String[] args) For debugging.
Configurable	newInstance(Class theClass)
void	setCombinerClass(Class theClass)
void	setInputDir(File dir)
void	setInputFormat(InputFormat format)
void	setInputKeyClass(Class theClass)
void	setInputValueClass(Class theClass)
void	setJar(String jar)
void	setMapperClass(Class theClass)
void	setNumMapTasks(int n)
void	setNumReduceTasks(int n)
void	setOutputDir(File dir)
void	setOutputFormat(OutputFormat format)
void	setOutputKeyClass(Class theClass)
void	setOutputKeyComparatorClass(Class theClass)
void	setOutputValueClass(Class theClass)
void	setPartitionerClass(Class theClass)
void	setReducerClass(Class theClass)

Methods inherited from class org.apache.nutch.util.NutchConf

addConfResource, addConfResource, get, get, get, getBoolean, getClass, getClass, getConfResourceAsInputStream, getConfResourceAsReader, getFloat, getInt, getLong, getResource, getStrings, set, setClass, setInt, write

Methods inherited from class java.lang.Object

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

Constructor Detail

JobConf

public JobConf()

Construct a map/reduce configuration.

JobConf

public JobConf(String config)

Construct a map/reduce configuration.

Parameters:

config - a NutchConf-format XML job description file

JobConf

public JobConf(File config)

Construct a map/reduce configuration.

Parameters:

config - a NutchConf-format XML job description file

Method Detail

getJar

public String getJar()

setJar

public void setJar(String jar)

getSystemDir

public static File getSystemDir()

getLocalDir

public static File getLocalDir()

getInputDir

public File getInputDir()

setInputDir

public void setInputDir(File dir)

getOutputDir

public File getOutputDir()

setOutputDir

public void setOutputDir(File dir)

getInputFormat

public InputFormat getInputFormat()

setInputFormat

public void setInputFormat(InputFormat format)

getOutputFormat

public OutputFormat getOutputFormat()

setOutputFormat

public void setOutputFormat(OutputFormat format)

getInputKeyClass

public Class getInputKeyClass()

setInputKeyClass

public void setInputKeyClass(Class theClass)

getInputValueClass

public Class getInputValueClass()

setInputValueClass

public void setInputValueClass(Class theClass)

getOutputKeyClass

public Class getOutputKeyClass()

setOutputKeyClass

public void setOutputKeyClass(Class theClass)

getOutputKeyComparatorClass

public Class getOutputKeyComparatorClass()

setOutputKeyComparatorClass

public void setOutputKeyComparatorClass(Class theClass)

getOutputValueClass

public Class getOutputValueClass()

setOutputValueClass

public void setOutputValueClass(Class theClass)

getMapperClass

public Class getMapperClass()

setMapperClass

public void setMapperClass(Class theClass)

getPartitionerClass

public Class getPartitionerClass()

setPartitionerClass

public void setPartitionerClass(Class theClass)

getReducerClass

public Class getReducerClass()

setReducerClass

public void setReducerClass(Class theClass)

getCombinerClass

public Class getCombinerClass()

setCombinerClass

public void setCombinerClass(Class theClass)

getNumMapTasks

public int getNumMapTasks()

setNumMapTasks

public void setNumMapTasks(int n)

getNumReduceTasks

public int getNumReduceTasks()

setNumReduceTasks

public void setNumReduceTasks(int n)

newInstance

public Configurable newInstance(Class theClass)

main

public static void main(String[] args)

Description copied from class: NutchConf

For debugging. List non-default properties to the terminal and exit.