me.edwards.des.util
Class Version

java.lang.Object
  me.edwards.des.util.Version

public class Version
extends java.lang.Object

Data structure representing a version for an application or class.

Created on: May 28, 2015 at 11:19:51 AM

Author:

Matthew Edwards

Field Summary

private static int[]	primes
private int	versionHash
private int[]	versionNum
private java.lang.String	versionString
private java.lang.String	versionToString

Constructor Summary

Version()
Creates new Version (Initialized as 0.0)

Version(java.lang.String version)
Creates new Version from parsed string.

Method Summary

int	hashCode()
boolean	isEqualTo(Version v) Compares this version and the specified version for equality.
boolean	isNewerThan(Version v) Compares this version and the specified version to find the newer one.
boolean	isOlderThan(Version v) Compares this version and the specified version to find the older one.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

primes

private static final int[] primes

versionNum

private int[] versionNum

versionHash

private int versionHash

versionString

private java.lang.String versionString

versionToString

private java.lang.String versionToString

Constructor Detail

Version

public Version()

Creates new Version (Initialized as 0.0)

Version

public Version(java.lang.String version)

Creates new Version from parsed string.

Parameters:

version - Version in format "12.34 Version_String" with a version number first (separated with periods), a space, and a version ID string (Alpha, etc.)

Throws:

java.security.InvalidParameterException - Throws InvalidParameterException if "version" string is improperly formatted

Method Detail

isEqualTo

public boolean isEqualTo(Version v)

Compares this version and the specified version for equality.

Parameters:

v - Version to compare

Returns:

True if both versions are equal, False otherwise

isNewerThan

public boolean isNewerThan(Version v)

Compares this version and the specified version to find the newer one.

Parameters:

v - Version to compare

Returns:

True if this version is newer than the specified version, False otherwise

isOlderThan

public boolean isOlderThan(Version v)

Compares this version and the specified version to find the older one.

Parameters:

v - Version to compare

Returns:

True if this version is older than the specified version, False otherwise

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object