org.norther.tammi.acorn.util
Class AlphaNumericComparator

java.lang.Object
  org.norther.tammi.acorn.util.AlphaNumericComparator

All Implemented Interfaces:

Serializable, Comparator

public class AlphaNumericComparator
extends Object
implements Comparator, Serializable

A string token comparator recognizing numbers.

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

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

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(Object object1,
                   Object object2)

Specified by:

compare in interface Comparator

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.