org.sonatype.aether.util.version
Class GenericVersionScheme

java.lang.Object
  org.sonatype.aether.util.version.GenericVersionScheme

All Implemented Interfaces:

VersionScheme

public class GenericVersionScheme
extends Object
implements VersionScheme

A version scheme using a generic version syntax and common sense sorting. This scheme accepts versions of any form, interpreting a version as a sequence of numeric and alphabetic components. The characters '-' and '.' as well as the mere transitions from digit to letter and vice versa delimit the version components. Delimiters are treated as equivalent. Numeric components are compared mathematically, alphabetic components are compared lexicographically and case-insensitively. However, the following qualifier strings are recognized and treated specially: "alpha" < "beta" < "milestone" < "cr" = "rc" < "snapshot" < "final" = "ga" < "sp". All of those well-known qualifiers are considered smaller/older than other strings. An empty component/string is equivalent to 0. Numbers and strings are considered incomparable against each other. Where version components of different kind would collide, comparison will instead assume that the previous components are padded with 0 or "ga", respectively, until the kind mismatch is resolved, i.e. 1-alpha = 1.0.0-alpha < 1.0.1-ga = 1.0.1.

Author:

Benjamin Bentmann, Alin Dreghiciu

Constructor Summary

GenericVersionScheme()
Creates a new instance of the version scheme for parsing versions.

Method Summary

boolean	equals(Object obj)
int	hashCode()
Version	parseVersion(String version)
VersionConstraint	parseVersionConstraint(String constraint)
VersionRange	parseVersionRange(String range)

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericVersionScheme

public GenericVersionScheme()

Creates a new instance of the version scheme for parsing versions.

Method Detail

parseVersion

public Version parseVersion(String version)
                     throws InvalidVersionSpecificationException

Specified by:

parseVersion in interface VersionScheme

Throws:

InvalidVersionSpecificationException

parseVersionRange

public VersionRange parseVersionRange(String range)
                               throws InvalidVersionSpecificationException

Specified by:

parseVersionRange in interface VersionScheme

Throws:

InvalidVersionSpecificationException

parseVersionConstraint

public VersionConstraint parseVersionConstraint(String constraint)
                                         throws InvalidVersionSpecificationException

Specified by:

parseVersionConstraint in interface VersionScheme

Throws:

InvalidVersionSpecificationException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object