Package org.jboss.logging.processor.util

Class VersionComparator

java.lang.Object

org.jboss.logging.processor.util.VersionComparator

All Implemented Interfaces:

Comparator<String>

public class VersionComparator
extends Object
implements Comparator<String>

Compares 2 different version strings.

The version strings must be valid integers separated by . (dots).

Date: 09.11.2011

Author:

James R. Perkins

Field Summary

Fields

Modifier and Type	Field	Description
static VersionComparator	INSTANCE

Method Summary

Modifier and Type	Method	Description
int	compare(String o1, String o2)
static int	compareVersion(String version1, String version2)	Compares the first version to the second version and returns, 0 if they are equal, a value less than 0 if the first version is less than the second version or a value greater than 0 if the first version is greater than the second version.

Methods inherited from class java.lang.Object

equals, 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

INSTANCE

public static VersionComparator INSTANCE

Method Details

compareVersion

public static int compareVersion(String version1,
 String version2)

Compares the first version to the second version and returns, 0 if they are equal, a value less than 0 if the first version is less than the second version or a value greater than 0 if the first version is greater than the second version.

Parameters:

version1 - the first version to compare.

version2 - the second version to compare.

Returns:

a value of 0 if the versions are equal, less than 0 if version1 is less than version2, a value greater than 0 if version1 is greater than version2.

compare

public int compare(String o1,
 String o2)

Specified by:

compare in interface Comparator<String>