Class NullComparator<T>

java.lang.Object

org.magicwerk.brownies.collections.helper.SingletonComparator<T>

org.magicwerk.brownies.collections.helper.NullComparator<T>

Type Parameters:

T - element type

All Implemented Interfaces:

Serializable, Comparator<T>

public class NullComparator<T>
extends SingletonComparator<T>

A NullComparator extends an existing comparator so it can handle null values.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Comparator<T>	comparator
private boolean	nullsFirst

Constructor Summary

Constructors

Constructor	Description
NullComparator(Comparator<T> comparator, boolean nullsFirst)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	compare(T key1, T key2)

Methods inherited from class SingletonComparator

equals, hashCode

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Comparator

reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Details

comparator

private Comparator<T> comparator

nullsFirst

private boolean nullsFirst

Constructor Details

NullComparator

public NullComparator(Comparator<T> comparator,
 boolean nullsFirst)

Constructor.

Parameters:

comparator - comparator to extend

nullsFirst - true to sort nulls first, false to sort null last

Method Details

compare

public int compare(T key1,
 T key2)