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 Analysis.A5_Min_Max_Median_Age_Top_Countries.Min_Max_Age_By_Country_Reducer.java

/**
 *
 * @author Chintan
 */
public class Min_Max_Age_By_Country_Reducer extends Reducer<Text, IntWritable, Text, Text> {
    private ArrayList<Integer> list = new ArrayList<>();

From source file Analysis.A6_User_Differentiation_By_Age.Partition_Users_By_Age_Reducer.java

/**
 *
 * @author Chintan
 */
public class Partition_Users_By_Age_Reducer extends Reducer<IntWritable, Text, Text, NullWritable> {
    private MultipleOutputs<Text, NullWritable> multipleOutputs;

From source file Analysis.A7_Total_Signups_By_Year.Total_Signup_by_Year_Reducer.java

/**
 *
 * @author Chintan
 */
public class Total_Signup_by_Year_Reducer extends Reducer<Text, IntWritable, Text, IntWritable> {
    private IntWritable result = new IntWritable();

From source file Analysis.A8_Top_10_Most_Popular_Tracks.Top_10_Most_Popular_Tracks_Reducer.java

/**
 *
 * @author Chintan
 */
public class Top_10_Most_Popular_Tracks_Reducer extends Reducer<Text, IntWritable, NullWritable, Text> {
    private TreeMap<Integer, String> top10 = new TreeMap<Integer, String>(Collections.reverseOrder());

From source file andromache.util.CassandraReducer.java

public class CassandraReducer<K2, V2> extends Reducer<K2, V2, ByteBuffer, List<WritableMutation>> {
}

From source file Assignment1_Wordcount.WordCount_Reducer.java

/**
 *
 * @author Chintan
 */
public class WordCount_Reducer extends Reducer<Text, IntWritable, Text, IntWritable> {
    private IntWritable result = new IntWritable();

From source file Assignment2_P2_StockExchangeCount.StockPrice_Reducer.java

/**
 *
 * @author Chintan
 */
public class StockPrice_Reducer extends Reducer<Text, FloatWritable, Text, FloatWritable> {
    private FloatWritable result = new FloatWritable();

From source file Assignment2_P3_GenderMovieCount.GenderMovieRating_Reducer.java

/**
 *
 * @author Chintan
 */
public class GenderMovieRating_Reducer extends Reducer<Text, IntWritable, Text, IntWritable> {
    private IntWritable result = new IntWritable();

From source file Assignment2_P4_MovieRatingCount.MovieRating_Reducer.java

/**
 *
 * @author Chintan
 */
public class MovieRating_Reducer extends Reducer<IntWritable, IntWritable, IntWritable, IntWritable> {
    private IntWritable result = new IntWritable();

From source file Assignment2_P5_IPAddressCount.IPAddress_Reducer.java

/**
 *
 * @author Chintan
 */
public class IPAddress_Reducer extends Reducer<Text, IntWritable, Text, IntWritable> {
    private IntWritable result = new IntWritable();