net.jqwik.vavr.NaturalComparator Maven / Gradle / Ivy
package net.jqwik.vavr;
import java.io.Serializable;
import java.util.Comparator;
/**
* see {@code io.vavr.collection.NaturalComparator}
*
* @author Benno Müller
*/
public class NaturalComparator implements Comparator, Serializable {
private static final long serialVersionUID = 1L;
private static final NaturalComparator INSTANCE = new NaturalComparator<>();
private NaturalComparator() {
}
@SuppressWarnings("unchecked")
public static NaturalComparator instance() {
return (NaturalComparator) INSTANCE;
}
@SuppressWarnings("unchecked")
@Override
public int compare(final T o1, final T o2) {
return ((Comparable) o1).compareTo(o2);
}
/**
* @see Comparator#equals(Object)
*/
@Override
public boolean equals(final Object obj) {
return obj instanceof NaturalComparator;
}
@Override
public int hashCode() {
return 1;
}
/**
* Instance control for object serialization.
*
* @return The singleton instance of NaturalComparator.
* @see java.io.Serializable
*/
private Object readResolve() {
return INSTANCE;
}
}