Package org.magicwerk.brownies.collections.helper

Class NaturalComparator<T>

java.lang.Object

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

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

Type Parameters:

T - element type

All Implemented Interfaces:

Serializable, Comparator<T>

public class NaturalComparator<T>
extends SingletonComparator<T>

The NaturalComparator will compare object using their natural order.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final NaturalComparator	INSTANCE	Singleton instance.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	NaturalComparator()	Prevent construction.

Method Summary

Modifier and Type	Method	Description
int	compare(T o1, T o2)
static <T> Comparator<T>	getComparator(Class<T> clazz)	Return the natural comparator for the class if it implements Comparable, otherwise null is returned.
static <T> NaturalComparator<T>	INSTANCE()	Returns singleton instance.
static <T> NaturalComparator<T>	INSTANCE(Class<T> c)	Returns singleton instance.

Methods inherited from class org.magicwerk.brownies.collections.helper.SingletonComparator

equals, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

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

Field Details

INSTANCE

private static final NaturalComparator INSTANCE

Singleton instance.

Constructor Details

NaturalComparator

private NaturalComparator()

Prevent construction.

Method Details

getComparator

public static <T> Comparator<T> getComparator(Class<T> clazz)

Return the natural comparator for the class if it implements Comparable, otherwise null is returned.

Parameters:

clazz - class to get comparator for

Returns:

comparator for class, null if not available

INSTANCE

public static <T> NaturalComparator<T> INSTANCE()

Returns singleton instance.

INSTANCE

public static <T> NaturalComparator<T> INSTANCE(Class<T> c)

Returns singleton instance.

compare

public int compare(T o1,
 T o2)