public class AlphaNumericComparator extends AlphabeticalComparator
This implementation uses a single comparison pass over the characters in a CharSequence, and returns as soon as a differing character is found, unless the difference occurs in a series of numeric characters, in which case that series is followed to its end. Numeric series of equal length are compared numerically, that is, according to the most significant (leftmost) differing digit. Series of unequal length are compared by their length.
This implementation appears to be 2-5 times faster than alphanumeric comparators based based on substring analysis, with a lighter memory footprint.
This alphanumeric comparator has approximately 20%-50% the performance of the lexical String.compareTo() operation. Character sequences without numeric data are compared more quickly.
Dedicated to the public domain by the original author: http://creativecommons.org/licenses/publicdomain/
|Constructor and Description|
|Modifier and Type||Method and Description|
Compares two strings.
Indicates if the character is a digit.
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public int compare(java.lang.String uri0, java.lang.String uri1)
protected boolean isNotDigit(char x)
x- The character to test.
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