Package net.sf.saxon.style

Class PackageVersion

java.lang.Object

net.sf.saxon.style.PackageVersion

All Implemented Interfaces:

Comparable<PackageVersion>

public class PackageVersion
extends Object
implements Comparable<PackageVersion>

A class to represent an XSLT package version such as 1.12.5 or 3.0-alpha

This implements the semantics given in http://www.w3.org/TR/xslt-30/#package-versions, where a series of dot-separated integers may be followed optionally by '-'NCName

Field Summary

Fields

Modifier and Type	Field	Description
static PackageVersion	MAX_VALUE
static PackageVersion	ONE
List<Integer>	parts
String	suffix
static PackageVersion	ZERO

Constructor Summary

Constructors

Constructor	Description
PackageVersion(int[] values)	Return a package version defined by a fixed sequence of int values, which implies no suffix
PackageVersion(String s)	Generate a package version from a string description

Method Summary

Modifier and Type	Method	Description
int	compareTo(PackageVersion o)
boolean	equals(Object o)
boolean	equalsIgnoringSuffix(PackageVersion other)	Compare two version numbers for equality, ignoring the suffix part of the version number.
int	hashCode()	Returns a hash code value for the object.
boolean	isPrefix(PackageVersion v)	Tests whether this package version is a prefix (i.e.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

parts

public List<Integer> parts

suffix

public String suffix

ZERO

public static PackageVersion ZERO

ONE

public static PackageVersion ONE

MAX_VALUE

public static PackageVersion MAX_VALUE

Constructor Detail

PackageVersion

public PackageVersion(int[] values)

Return a package version defined by a fixed sequence of int values, which implies no suffix

Parameters:

values - the sequence of integer components

PackageVersion

public PackageVersion(String s)
               throws XPathException

Generate a package version from a string description

Parameters:

s - The input string describing the package version according to the grammar given at: http://www.w3.org/TR/xslt-30/#package-versions

Throws:

XPathException - if the syntax of the package version is incorrect

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

equalsIgnoringSuffix

public boolean equalsIgnoringSuffix(PackageVersion other)

Compare two version numbers for equality, ignoring the suffix part of the version number. For example 2.1-alpha compares equal to 2.1-beta

Parameters:

other - the other name/version pair

Returns:

true if the values are equal in all respects other than the alphanumeric suffix of the version number.

compareTo

public int compareTo(PackageVersion o)

Specified by:

compareTo in interface Comparable<PackageVersion>

toString

public String toString()

Overrides:

toString in class Object

isPrefix

public boolean isPrefix(PackageVersion v)

Tests whether this package version is a prefix (i.e. shares all its components in order) of another package version, and thus this version.* should match it.

Parameters:

v - The version to be checked that it is equal, or 'extends' this version

Returns:

true if this is a prefix, false if not.