Package com.mapr.db.mapreduce.tools.impl

Class RangeChecksum.RangeChecksumMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>

com.mapr.db.mapreduce.tools.impl.RangeChecksum.RangeChecksumMapper

Enclosing class:

RangeChecksum

public static class RangeChecksum.RangeChecksumMapper
extends org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor	Description
RangeChecksumMapper()

Method Summary

Modifier and Type	Method	Description
protected void	cleanup(org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
void	map(org.ojai.Value rowValue, com.mapr.db.rowcol.DBDocumentImpl docValue, org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
void	setup(org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
void	updateChecksum(com.mapr.db.mapreduce.impl.ByteBufWritableComparable row, com.mapr.db.rowcol.DBDocumentImpl docValue)

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

run

Methods inherited from class java.lang.Object

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

Constructor Details

RangeChecksumMapper

public RangeChecksumMapper()

Method Details

setup

public void setup(org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
           throws IOException,
InterruptedException

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException

updateChecksum

public void updateChecksum(com.mapr.db.mapreduce.impl.ByteBufWritableComparable row,
 com.mapr.db.rowcol.DBDocumentImpl docValue)

map

public void map(org.ojai.Value rowValue,
 com.mapr.db.rowcol.DBDocumentImpl docValue,
 org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
                throws IOException,
InterruptedException

Overrides:

cleanup in class org.apache.hadoop.mapreduce.Mapper<org.ojai.Value,com.mapr.db.rowcol.DBDocumentImpl,com.mapr.db.mapreduce.impl.ByteBufWritableComparable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException