Package com.complexible.common.util

Class AlphaNumericComparator<T>

java.lang.Object

com.complexible.common.util.AlphaNumericComparator<T>

All Implemented Interfaces:

Comparator<T>

public class AlphaNumericComparator<T>
extends Object
implements Comparator<T>

This is a comparator to perform a mix of alphabetical+numeric comparison. For example, if there is a list {"test10", "test2", "test150", "test25", "test1"} then what we generally expect from the ordering is the result {"test1", "test2", "test10", "test25", "test150"}. However, standard lexigraphic ordering does not do that and "test10" comes before "test2". This class is provided to overcome that problem. This functionality is useful to sort the benchmark files (like the ones in in DL-benchmark-suite) from smallest to the largest. Comparisons are done on the String values returned by toString() so care should be taken when this comparator is used to sort arbitrary Java objects.

Author:

Evren Sirin

Field Summary

Fields

Modifier and Type	Field	Description
static final AlphaNumericComparator<Object>	CASE_INSENSITIVE	Deprecated. Use caseInsensitive() instead
static final AlphaNumericComparator<Object>	CASE_SENSITIVE	Deprecated. Use caseSensitive() instead

Method Summary

Modifier and Type	Method	Description
static <T> AlphaNumericComparator<T>	caseInsensitive()
static <T> AlphaNumericComparator<T>	caseSensitive()
int	compare(T o1, T o2)
static <T> AlphaNumericComparator<T>	getInstance(boolean caseSensitive)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

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

Field Details

CASE_SENSITIVE

@Deprecated
public static final AlphaNumericComparator<Object> CASE_SENSITIVE

Deprecated.

Use caseSensitive() instead

A static instantiation of a case sensitive AlphaNumericComparator

CASE_INSENSITIVE

@Deprecated
public static final AlphaNumericComparator<Object> CASE_INSENSITIVE

Deprecated.

Use caseInsensitive() instead

A static instantiation of a case insensitive AlphaNumericComparator

Method Details

caseSensitive

public static <T> AlphaNumericComparator<T> caseSensitive()

caseInsensitive

public static <T> AlphaNumericComparator<T> caseInsensitive()

getInstance

public static <T> AlphaNumericComparator<T> getInstance(boolean caseSensitive)

compare

public int compare(T o1,
 T o2)

Specified by:

compare in interface Comparator<T>