org.magicwerk.brownies.collections.helper

Class NaturalComparator<T>

java.lang.Object

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

Type Parameters:

T - element type

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<T>

public class NaturalComparator<T>
extends java.lang.Object

The NaturalComparator will compare object using their natural order.

See Also:

Serialized Form

Method Summary

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Method Detail

getComparator

public static <T> java.util.Comparator<T> getComparator(java.lang.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(java.lang.Class<T> c)

Returns singleton instance.

compare

public int compare(T o1,
                   T o2)

equals

public boolean equals(java.lang.Object that)

Specified by:

equals in interface java.util.Comparator<T>

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object