com.whizzosoftware.hobson.api.util

Class VersionUtil

java.lang.Object

com.whizzosoftware.hobson.api.util.VersionUtil

public class VersionUtil
extends java.lang.Object

Version related convenience methods.

Author:

Dan Noguerol

Constructor Summary

Constructors

Constructor and Description
VersionUtil()

Method Summary

Modifier and Type	Method and Description
static int	versionCompare(java.lang.String str1, java.lang.String str2) Compares two version strings.

Methods inherited from class java.lang.Object

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

Constructor Detail

VersionUtil

public VersionUtil()

Method Detail

versionCompare

public static int versionCompare(java.lang.String str1,
                                 java.lang.String str2)

Compares two version strings. Use this instead of String.compareTo() for a non-lexicographical comparison that works for version strings. e.g. "1.10".compareTo("1.6"). Note: this does not work if "1.10" is supposed to be equal to "1.10.0".

Parameters:

str1 - a string of ordinal numbers separated by decimal points.

str2 - a string of ordinal numbers separated by decimal points.

Returns:

The result is a negative integer if str1 is _numerically_ less than str2. The result is a positive integer if str1 is _numerically_ greater than str2. The result is zero if the strings are _numerically_ equal.