org.norther.tammi.acorn.util
Class AlphaNumericComparator<T>

java.lang.Object
  org.norther.tammi.acorn.util.AlphaNumericComparator<T>

Type Parameters:

T - the type to compare.

All Implemented Interfaces:

Serializable, Comparator<T>

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

A string token comparator recognizing numbers.

Version:

$Id: AlphaNumericComparator.java,v 1.7 2009/09/28 15:08:48 cvsimp Exp $

Author:

Ilkka Priha

See Also:

Serialized Form

Constructor Summary

AlphaNumericComparator()
Constructs a new comparator.

AlphaNumericComparator(boolean casep)
Constructs a new comparator with order.

Method Summary

protected int	compare(String token1, String token2) Compares two string tokens with embedded numerical sequences in ascending order.
int	compare(T object1, T object2)

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

Constructor Detail

AlphaNumericComparator

public AlphaNumericComparator()

Constructs a new comparator.

AlphaNumericComparator

public AlphaNumericComparator(boolean casep)

Constructs a new comparator with order.

Parameters:

casep - true for case-sensitive.

Method Detail

compare

public int compare(T object1,
                   T object2)

Specified by:

compare in interface Comparator<T>

compare

protected int compare(String token1,
                      String token2)

Compares two string tokens with embedded numerical sequences in ascending order.

Parameters:

token1 - the first token to be compared.

token2 - the second token to be compared.

Returns:

-1, 0 or 1 based on comparison.