ModuleVersion Class Reference

Version identifier for CppMicroServices modules. More...

Public Member Functions
	ModuleVersion (unsigned int majorVersion, unsigned int minorVersion, unsigned int microVersion)
	Creates a version identifier from the specified numerical components. More...
	ModuleVersion (unsigned int majorVersion, unsigned int minorVersion, unsigned int microVersion, const std::string &qualifier)
	Creates a version identifier from the specified components. More...
	ModuleVersion (const std::string &version)
	Created a version identifier from the specified string. More...
	ModuleVersion (const ModuleVersion &version)
	Create a version identifier from another. More...
bool	IsUndefined () const
	Returns the undefined state of this version identifier. More...
unsigned int	GetMajor () const
	Returns the majorVersion component of this version identifier. More...
unsigned int	GetMinor () const
	Returns the minorVersion component of this version identifier. More...
unsigned int	GetMicro () const
	Returns the microVersion component of this version identifier. More...
std::string	GetQualifier () const
	Returns the qualifier component of this version identifier. More...
std::string	ToString () const
	Returns the string representation of this version identifier. More...
bool	operator== (const ModuleVersion &object) const
	Compares this ModuleVersion object to another object. More...
int	Compare (const ModuleVersion &object) const
	Compares this ModuleVersion object to another object. More...

Static Public Member Functions
static ModuleVersion	EmptyVersion ()
	The empty version "0.0.0". More...
static ModuleVersion	UndefinedVersion ()
	Creates an undefined version identifier, representing either infinity or minus infinity. More...
static ModuleVersion	ParseVersion (const std::string &version)
	Parses a version identifier from the specified string. More...

Detailed Description

Version identifier for CppMicroServices modules.

Version identifiers have four components.

1. Major version. A non-negative integer.
2. Minor version. A non-negative integer.
3. Micro version. A non-negative integer.
4. Qualifier. A text string. See ModuleVersion(const std::string&) for the format of the qualifier string.

ModuleVersion objects are immutable.

Constructor & Destructor Documentation

ModuleVersion::ModuleVersion	(	unsigned int	majorVersion,
		unsigned int	minorVersion,
		unsigned int	microVersion
	)

Creates a version identifier from the specified numerical components.

The qualifier is set to the empty string.

Parameters

majorVersion	Major component of the version identifier.
minorVersion	Minor component of the version identifier.
microVersion	Micro component of the version identifier.

ModuleVersion::ModuleVersion	(	unsigned int	majorVersion,
		unsigned int	minorVersion,
		unsigned int	microVersion,
		const std::string &	qualifier
	)

Creates a version identifier from the specified components.

Parameters

majorVersion	Major component of the version identifier.
minorVersion	Minor component of the version identifier.
microVersion	Micro component of the version identifier.
qualifier	Qualifier component of the version identifier.

ModuleVersion::ModuleVersion

(

const std::string &

version

)

Created a version identifier from the specified string.

Here is the grammar for version strings.

version ::= majorVersion('.'minorVersion('.'microVersion('.'qualifier)?)?)?
majorVersion ::= digit+
minorVersion ::= digit+
microVersion ::= digit+
qualifier ::= (alpha|digit|'_'|'-')+
digit ::= [0..9]
alpha ::= [a..zA..Z]

There must be no whitespace in version.

Parameters

version

string representation of the version identifier.

ModuleVersion::ModuleVersion

(

const ModuleVersion &

version

)

Create a version identifier from another.

Parameters

version

Another version identifier

Member Function Documentation

int ModuleVersion::Compare

(

const ModuleVersion &

object

)

const

Compares this ModuleVersion object to another object.

A version is considered to be less than another version if its majorVersion component is less than the other version's majorVersion component, or the majorVersion components are equal and its minorVersion component is less than the other version's minorVersion component, or the majorVersion and minorVersion components are equal and its microVersion component is less than the other version's microVersion component, or the majorVersion, minorVersion and microVersion components are equal and it's qualifier component is less than the other version's qualifier component (using std::string::operator<()).

A version is considered to be equal to another version if the majorVersion, minorVersion and microVersion components are equal and the qualifier component is equal.

Parameters

object

The ModuleVersion object to be compared.

Returns

A negative integer, zero, or a positive integer if this object is less than, equal to, or greater than the specified ModuleVersion object.

static ModuleVersion ModuleVersion::EmptyVersion ( )

static

The empty version "0.0.0".

unsigned int ModuleVersion::GetMajor

(

)

const

Returns the majorVersion component of this version identifier.

Returns

The majorVersion component.

unsigned int ModuleVersion::GetMicro

(

)

const

Returns the microVersion component of this version identifier.

Returns

The microVersion component.

unsigned int ModuleVersion::GetMinor

(

)

const

Returns the minorVersion component of this version identifier.

Returns

The minorVersion component.

std::string ModuleVersion::GetQualifier

(

)

const

Returns the qualifier component of this version identifier.

Returns

The qualifier component.

bool ModuleVersion::IsUndefined

(

)

const

Returns the undefined state of this version identifier.

Returns

true if this version identifier is undefined, false otherwise.

bool ModuleVersion::operator==

(

const ModuleVersion &

object

)

const

Compares this ModuleVersion object to another object.

A version is considered to be equal to another version if the majorVersion, minorVersion and microVersion components are equal and the qualifier component is equal.

Parameters

object

The ModuleVersion object to be compared.

Returns

true if object is a ModuleVersion and is equal to this object; false otherwise.

static ModuleVersion ModuleVersion::ParseVersion ( const std::string &  version )

static

Parses a version identifier from the specified string.

See ModuleVersion(const std::string&) for the format of the version string.

Parameters

version

string representation of the version identifier. Leading and trailing whitespace will be ignored.

Returns

A ModuleVersion object representing the version identifier. If version is the empty string then EmptyVersion will be returned.

std::string ModuleVersion::ToString

(

)

const

Returns the string representation of this version identifier.

The format of the version string will be majorVersion.minorVersion.microVersion if qualifier is the empty string or majorVersion.minorVersion.microVersion.qualifier otherwise.

Returns

The string representation of this version identifier.

static ModuleVersion ModuleVersion::UndefinedVersion ( )

static

Creates an undefined version identifier, representing either infinity or minus infinity.