Class GenericVersionScheme
- java.lang.Object
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- org.eclipse.aether.util.version.GenericVersionScheme
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- All Implemented Interfaces:
VersionScheme
public final 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 segments. The characters '-', '_', and '.' as well as the mere transitions from digit to letter and vice versa delimit the version segments. Delimiters are treated as equivalent.
Numeric segments are compared mathematically, alphabetic segments are compared lexicographically and case-insensitively. However, the following qualifier strings are recognized and treated specially: "alpha" = "a" < "beta" = "b" < "milestone" = "m" < "cr" = "rc" < "snapshot" < "final" = "ga" < "sp". All of those well-known qualifiers are considered smaller/older than other strings. An empty segment/string is equivalent to 0.
In addition to the above mentioned qualifiers, the tokens "min" and "max" may be used as final version segment to denote the smallest/greatest version having a given prefix. For example, "1.2.min" denotes the smallest version in the 1.2 line, "1.2.max" denotes the greatest version in the 1.2 line. A version range of the form "[M.N.*]" is short for "[M.N.min, M.N.max]".
Numbers and strings are considered incomparable against each other. Where version segments of different kind would collide, comparison will instead assume that the previous segments are padded with trailing 0 or "ga" segments, respectively, until the kind mismatch is resolved, e.g. "1-alpha" = "1.0.0-alpha" < "1.0.1-ga" = "1.0.1".
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Constructor Summary
Constructors Constructor Description GenericVersionScheme()
Creates a new instance of the version scheme for parsing versions.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object obj)
int
hashCode()
Version
parseVersion(String version)
VersionConstraint
parseVersionConstraint(String constraint)
VersionRange
parseVersionRange(String range)
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Constructor Detail
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GenericVersionScheme
public GenericVersionScheme()
Creates a new instance of the version scheme for parsing versions.
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Method Detail
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parseVersion
public Version parseVersion(String version) throws InvalidVersionSpecificationException
- Specified by:
parseVersion
in interfaceVersionScheme
- Throws:
InvalidVersionSpecificationException
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parseVersionRange
public VersionRange parseVersionRange(String range) throws InvalidVersionSpecificationException
- Specified by:
parseVersionRange
in interfaceVersionScheme
- Throws:
InvalidVersionSpecificationException
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parseVersionConstraint
public VersionConstraint parseVersionConstraint(String constraint) throws InvalidVersionSpecificationException
- Specified by:
parseVersionConstraint
in interfaceVersionScheme
- Throws:
InvalidVersionSpecificationException
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