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

Introduction

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

Usage

From source file gr.ntua.h2rdf.partialJoin.SimpleReducer.java

public class SimpleReducer extends Reducer<ImmutableBytesWritable, Text, Text, Text> {
    protected void reduce(ImmutableBytesWritable c, Iterable<Text> hashes,
            org.apache.hadoop.mapreduce.Reducer<ImmutableBytesWritable, Text, Text, Text>.Context context)
            throws java.io.IOException, InterruptedException {
        for (Text curhash : hashes) {
            context.write(curhash, new Text(""));

From source file hadoop.api.AggregateAndRecommendReducer.java

/**
 * <p>computes prediction values for each user</p>
 *
 * <pre>
 * u = a user
 * i = an item not yet rated by u

From source file hadoop.mongo.treasury.TreasuryYieldReducer.java

/**
 * The treasury yield reducer.
 */
public class TreasuryYieldReducer extends Reducer<IntWritable, DoubleWritable, IntWritable, BSONWritable>
        implements org.apache.hadoop.mapred.Reducer<IntWritable, DoubleWritable, IntWritable, BSONWritable> {

From source file hadoop.mongo.treasury.TreasuryYieldUpdateReducer.java

/**
 * The treasury yield reducer.
 */
public class TreasuryYieldUpdateReducer
        extends Reducer<IntWritable, DoubleWritable, NullWritable, MongoUpdateWritable> {

From source file hadoopexample.AllQtyReducer.java

/**
 *
 * @author pvub
 */
public class AllQtyReducer extends Reducer<Text, MapperEnvelope, Text, MapperEnvelope> {
    private ApplicationProperties Prop = null;

From source file hamr.core.general.reducer.GeneralReducer.java

public class GeneralReducer extends Reducer<AnnotedBean, NullWritable, AnnotedBean, NullWritable> {

    @SuppressWarnings({ "unchecked", "rawtypes" })
    protected void reduce(AnnotedBean key, Iterable<NullWritable> value,
            Reducer<AnnotedBean, NullWritable, AnnotedBean, NullWritable>.Context context) {

From source file hello.IntSumReducer.java

public class IntSumReducer extends Reducer<Text, IntWritable, Text, IntWritable> {

    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context)
            throws IOException, InterruptedException {
        int sum = 0;

From source file homework.homework.homework1.HomeworkReducer1.java

/**
 * Wordcount Reducer
 *
 * @author Edward KIM
 * @version 0.1
 */

From source file homework.homework.homework2.HomeworkReducer2.java

/**
 * Wordcount Reducer
 *
 * @author Edward KIM
 * @version 0.1
 */

From source file homework.homework.homework3.HomeworkReducer3.java

/**
 * Wordcount Reducer
 *
 * @author Edward KIM
 * @version 0.1
 */