Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.pagerankcalculator.ordering; import org.apache.hadoop.io.DoubleWritable; import org.apache.hadoop.io.WritableComparable; import org.apache.hadoop.io.WritableComparator; /** * * @author mfikria */ public class DoubleSortDescComparator extends WritableComparator { protected DoubleSortDescComparator() { super(DoubleWritable.class, true); } @SuppressWarnings("rawtypes") @Override public int compare(WritableComparable w1, WritableComparable w2) { DoubleWritable k1 = (DoubleWritable) w1; DoubleWritable k2 = (DoubleWritable) w2; return -1 * k1.compareTo(k2); } }