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High-performance Java Dataframe with integrated columnar storage (fork of tablesaw)

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package org.datavec.dataframe.util;

import it.unimi.dsi.fastutil.shorts.ShortComparator;

import javax.annotation.concurrent.Immutable;

/**
 * A Comparator for int primitives for sorting in reverse order, using the given comparator
 */
@Immutable
public final class ReverseShortComparator {

  public static ShortComparator reverseShortComparator = new ShortComparator() {

    @Override
    public int compare(Short o2, Short o1) {
      return (o1 < o2 ? -1 : (o1.equals(o2) ? 0 : 1));
    }

    @Override
    public int compare(short o2, short o1) {
      return (o1 < o2 ? -1 : (o1 == o2 ? 0 : 1));
    }
  };

  public static ShortComparator instance() {
    return reverseShortComparator;
  }
}