gov.llnl.ontology.mapreduce
Class EvidenceTableMR

java.lang.Object
  org.apache.hadoop.conf.Configured
      gov.llnl.ontology.mapreduce.EvidenceTableMR

All Implemented Interfaces:

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

Direct Known Subclasses:

DependencyPathCountMR, LabelNounPairsMR

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

Author:

Keith Stevens

Field Summary

static String	CONF_PREFIX The configuration key prefix.
static String	EVIDENCE The configuration key for setting the EvidenceTable.

Constructor Summary

EvidenceTableMR()

Method Summary

protected void	addOptions(MRArgOptions options) Add more command line arguments.
protected abstract Class	mapperClass() Returns the Class object for the Mapper task.
protected Class	mapperKeyClass() Returns the Class object for the Mapper Key of this task.
protected Class	mapperValueClass() Returns the Class object for the Mapper Value of this task.
int	run(String[] args)
protected void	setupConfiguration(MRArgOptions options, org.apache.hadoop.conf.Configuration conf) Copies command line arguments to a Configuration so that Map/Reduce jobs can utilize the values set.
protected void	setupReducer(String tableName, org.apache.hadoop.mapreduce.Job job, MRArgOptions options) Sets up the Reducer for this job.
protected boolean	validOptions(MRArgOptions options) Returns true if the MRArgOptions contains a valid value for each requried option.

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

CONF_PREFIX

public static String CONF_PREFIX

The configuration key prefix.

EVIDENCE

public static String EVIDENCE

The configuration key for setting the EvidenceTable.

Constructor Detail

EvidenceTableMR

public EvidenceTableMR()

Method Detail

addOptions

protected void addOptions(MRArgOptions options)

Add more command line arguments.

validOptions

protected boolean validOptions(MRArgOptions options)

Returns true if the MRArgOptions contains a valid value for each requried option.

setupConfiguration

protected void setupConfiguration(MRArgOptions options,
                                  org.apache.hadoop.conf.Configuration conf)

Copies command line arguments to a Configuration so that Map/Reduce jobs can utilize the values set.

setupReducer

protected void setupReducer(String tableName,
                            org.apache.hadoop.mapreduce.Job job,
                            MRArgOptions options)
                     throws IOException

Sets up the Reducer for this job. By default, it is a IdentityTableReducer.

Throws:

IOException

mapperClass

protected abstract Class mapperClass()

Returns the Class object for the Mapper task.

mapperKeyClass

protected Class mapperKeyClass()

Returns the Class object for the Mapper Key of this task.

mapperValueClass

protected Class mapperValueClass()

Returns the Class object for the Mapper Value of this task.

run

public int run(String[] args)
        throws IOException,
               InterruptedException,
               ClassNotFoundException

Specified by:

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

Throws:

IOException

InterruptedException

ClassNotFoundException