Gcs_view_identifier Class Reference

This represents the identification of a certain view of a certain group in a moment in time. More...

#include <gcs_view_identifier.h>

Inheritance diagram for Gcs_view_identifier:

Public Member Functions
	Gcs_view_identifier ()=default
	Gcs_view_identifier (const Gcs_view_identifier &)=default
	Gcs_view_identifier (Gcs_view_identifier &&)=default
Gcs_view_identifier &	operator= (const Gcs_view_identifier &)=default
Gcs_view_identifier &	operator= (Gcs_view_identifier &&)=default
virtual const std::string &	get_representation () const =0
	Returns a normalized representation of the DTO. More...
virtual Gcs_view_identifier *	clone () const =0
	Returns a copy of this object. More...
bool	operator< (const Gcs_view_identifier &other) const
	Redefinition of the operator less, to allow usage as key in maps. More...
bool	operator== (const Gcs_view_identifier &other) const
	Redefinition of the operator equals, to allow usage in sets. More...
bool	operator!= (const Gcs_view_identifier &other) const
virtual	~Gcs_view_identifier ()=default

Private Member Functions
virtual bool	equals (const Gcs_view_identifier &other) const =0
virtual bool	lessThan (const Gcs_view_identifier &other) const =0

Detailed Description

This represents the identification of a certain view of a certain group in a moment in time.

This identifier must increase monotonically and be unique, in order to provide the notion of "happened before".

The get_representation() method is virtual, since each binding implementation might provide its notion of view identifier. The only mandatory property is that they should be comparable.

Constructor & Destructor Documentation

Gcs_view_identifier() [1/3]

Gcs_view_identifier::Gcs_view_identifier ( )

default

Gcs_view_identifier() [2/3]

Gcs_view_identifier::Gcs_view_identifier ( const Gcs_view_identifier &  )

default

Gcs_view_identifier() [3/3]

Gcs_view_identifier::Gcs_view_identifier ( Gcs_view_identifier &&  )

default

~Gcs_view_identifier()

virtual Gcs_view_identifier::~Gcs_view_identifier ( )

virtualdefault

Member Function Documentation

clone()

virtual Gcs_view_identifier * Gcs_view_identifier::clone ( ) const

pure virtual

Returns a copy of this object.

Since this object is an interface, this is necessary to generate copies of it.

Returns

a copy of the current object

Implemented in Gcs_xcom_view_identifier.

equals()

virtual bool Gcs_view_identifier::equals ( const Gcs_view_identifier &  other ) const

privatepure virtual

Implemented in Gcs_xcom_view_identifier.

get_representation()

virtual const std::string & Gcs_view_identifier::get_representation ( ) const

pure virtual

Returns a normalized representation of the DTO.

Returns

a const char * containing the normalized representation of the DTO

Implemented in Gcs_xcom_view_identifier.

lessThan()

virtual bool Gcs_view_identifier::lessThan ( const Gcs_view_identifier &  other ) const

privatepure virtual

Implemented in Gcs_xcom_view_identifier.

operator!=()

bool Gcs_view_identifier::operator!= ( const Gcs_view_identifier &  other ) const

inline

operator<()

bool Gcs_view_identifier::operator< ( const Gcs_view_identifier &  other ) const

inline

Redefinition of the operator less, to allow usage as key in maps.

Parameters

[in]

other

the Gcs_view_identifier to compare to

Returns

true if the objects is less than other, according to the internal representation of the object. false otherwise.

operator=() [1/2]

Gcs_view_identifier & Gcs_view_identifier::operator= ( const Gcs_view_identifier &  )

default

operator=() [2/2]

Gcs_view_identifier & Gcs_view_identifier::operator= ( Gcs_view_identifier &&  )

default

operator==()

bool Gcs_view_identifier::operator== ( const Gcs_view_identifier &  other ) const

inline

Redefinition of the operator equals, to allow usage in sets.

Parameters

[in]

other

the Gcs_view_identifier to compare to

Returns

true if the objects have the same internal representation. false otherwise.

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The documentation for this class was generated from the following file:

• plugin/group_replication/libmysqlgcs/include/mysql/gcs/gcs_view_identifier.h