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 Assignment3_P2_MergeStockAverageCount.StockPriceMerge_Reducer.java

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

From source file Assignment3_P4_DateStock.DateStock_Reducer.java

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

From source file Assignment3_P5_Top25Movies.Top25MovieRating_Reducer.java

/**
 *
 * @author Chintan
 */
public class Top25MovieRating_Reducer extends Reducer<IntWritable, FloatWritable, IntWritable, FloatWritable> {
    private FloatWritable result = new FloatWritable();

From source file Assignment3_P5_Top25Movies.Top25MovieRating_Reducer1.java

/**
 *
 * @author Chintan
 */
public class Top25MovieRating_Reducer1 extends Reducer<FloatWritable, IntWritable, FloatWritable, IntWritable> {
    private HashMap<FloatWritable, IntWritable> countMap = new HashMap<>();

From source file Assignment4_P2_StockAverageWithCombiner.StockAverage_Combiner.java

/**
 *
 * @author Chintan
 */
public class StockAverage_Combiner
        extends Reducer<Text, StockAverage_CompositeValueWritable, Text, StockAverage_CompositeValueWritable> {

From source file Assignment4_P2_StockAverageWithCombiner.StockAverage_Reducer.java

/**
 *
 * @author Chintan
 */
public class StockAverage_Reducer
        extends Reducer<Text, StockAverage_CompositeValueWritable, Text, StockAverage_CompositeValueWritable> {

From source file Assignment4_P3_InMemoryStdDeviation.MovieRatingStdDev_Reducer.java

/**
 *
 * @author Chintan
 */
public class MovieRatingStdDev_Reducer extends Reducer<IntWritable, FloatWritable, IntWritable, Text> {
    private Text result;

From source file Assignment4_P4_MemoryConscious.MovieRatingMemConscious_Reducer.java

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

From source file Assignment4_P4_MemoryConscious.MovingRatingMemConscious_Combiner.java

/**
 *
 * @author Chintan
 */
public class MovingRatingMemConscious_Combiner
        extends Reducer<IntWritable, SortedMapWritable, IntWritable, SortedMapWritable> {

From source file Assignment5_P2_DistinctIPAddress.DistinctIPAddress_Reducer.java

/**
 *
 * @author Chintan
 */
public class DistinctIPAddress_Reducer extends Reducer<Text, NullWritable, Text, NullWritable> {