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Which Version of Version (Buckminster)

Revision as of 03:11, 13 November 2006 by (Talk | contribs) (Buckminster Which Version of Version moved to Which Version of Version (Buckminster))

Many things are versioned, and there are many different concepts that include the word "version". Here we try to bring clarity to the various,,,eh - versions ;)

Plain Version

A plain version is a version string like "4.5.0" or "titanic-47b". It is parsed and understood by a Version Type.

Version Selector

A version selector is a more qualified reference to a version of a component state in a repository. It is something like "3.1.0/LATEST" or "main/3.1.0". The selector can refer to a state that can change over time, or to a fixed state (using a changenumber or a timestamp).

See Version Selector for more info.

Version Designator

A version designator is a reference to one or several plain versions. It uses OSGi notation to describe an inclusive or exclusive range. An example is [3.0.1, 4.5.0]. For more information see Version Designator. Note that even if the designator is based on OSGi syntax, the interpretation of the plain version strings in the range is performed by a Version Type.

Version Type

A version type is a class that understands a plain version. It is capable of comparing plain versions of the same type and order them. Is "titanic-27" later than "AndreaDoria-42"? For more information see Version Type

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