Example usage for org.apache.hadoop.mapreduce Mapper subclass-usage

Introduction

In this page you can find the example usage for org.apache.hadoop.mapreduce Mapper subclass-usage.

Usage

From source file com.ema.hadoop.wordcount.WCMapper.java

/**
 *
 * @author sharispe
 */
public class WCMapper extends Mapper<LongWritable, Text, Text, IntWritable> {

From source file com.examples.ch03.CLFMapper_Ex_1.java

/**
 *
 * @author aahmed
 */
public class CLFMapper_Ex_1 extends Mapper<Object, Text, Text, Text> {

From source file com.examples.ch03.PageViewMapper.java

/**
 *
 * @author aahmed
 */
public class PageViewMapper extends Mapper<Object, Text, CompositeKey, Text> {

From source file com.facebook.hiveio.mapreduce.output.SampleMapper.java

/**
 * Mapper
 */
public class SampleMapper extends Mapper<NullWritable, MapWritable, NullWritable, HiveWritableRecord> {
    /** Logger */
    private static final Logger LOG = LoggerFactory.getLogger(SampleMapper.class);

From source file com.flytxt.yesbank.mapper.HdfsEngineMapper.java

public class HdfsEngineMapper extends Mapper<Object, Text, Text, IntWritable> {

    private final static IntWritable one = new IntWritable(1);
    private Text word = new Text();
    private String delimiter = ",";

From source file com.github.sandgorgon.parmr.UserMapper.java

/**
 *
 * @author rdevera
 */
public class UserMapper extends Mapper<LongWritable, User, Text, Text> {

From source file com.github.ygf.pagerank.InLinksMapper.java

public class InLinksMapper extends Mapper<LongWritable, Text, IntWritable, IntWritable> {

    private IntWritable one = new IntWritable(1);

    @Override
    public void map(LongWritable inKey, Text inValue, Context context) throws IOException, InterruptedException {

From source file com.github.ygf.pagerank.InLinksTopNMapper.java

public class InLinksTopNMapper extends Mapper<IntWritable, IntWritable, IntWritable, IntWritable> {

    // TODO: Create base classes TopN{Mapper,Reducer} to avoid duplicate 
    // code in {PageRank,InLinks}TopN{Mapper,Reducer}.

    private PriorityQueue<Map.Entry<Integer, Integer>> topN;

From source file com.github.ygf.pagerank.PageRankIterationMapper.java

public class PageRankIterationMapper
        extends Mapper<ShortArrayWritable, MatrixBlockWritable, ShortWritable, FloatArrayWritable> {

    @Override
    public void map(ShortArrayWritable inKey, MatrixBlockWritable inValue, Context context)
            throws IOException, InterruptedException {

From source file com.github.ygf.pagerank.PageRankMatrixMapper.java

public class PageRankMatrixMapper extends Mapper<LongWritable, Text, ShortArrayWritable, ShortArrayWritable> {

    @Override
    public void map(LongWritable inKey, Text inValue, Context context) throws IOException, InterruptedException {

        // This task gets a line from links-simple-sorted.txt that contains the