gum::VariableNodeMap Class Reference

Container used to map discrete variables with nodes. More...

#include <variableNodeMap.h>

Collaboration diagram for gum::VariableNodeMap:

Public Member Functions
Constructors / Destructors
	VariableNodeMap ()
	Default constructor.
	VariableNodeMap (const VariableNodeMap &source)
	Copy constructor Proceed a deep copy: all variables are copied but keep the same node id.
	~VariableNodeMap ()
	Destructor.
VariableNodeMap &	operator= (const VariableNodeMap &source)
	Copy operator.
Getters and setters.
const DiscreteVariable &	get (NodeId id) const
	Returns a discrete variable given it's node id.
NodeId	get (const DiscreteVariable &var) const
	Returns a node id given it's variable.
bool	exists (NodeId id) const
	Return true if id matches a node.
bool	exists (const DiscreteVariable &var) const
	Return true if var matches a node.
NodeId	insert (NodeId id, const DiscreteVariable &var)
	Maps id with var.
void	erase (NodeId id)
	Removes a var and it's id of this mapping. The pointer is deleted.
void	erase (const DiscreteVariable &var)
	Removes a var and it's id of this mapping. The pointer is deleted.
void	changeName (NodeId id, const std::string &new_name)
	we allow the user to change the name of a variable
void	clear ()
	removes all the associations
Size	size () const
	give the size
std::string	toString () const
	friendly displays the content of the VariableNodeMap
const std::string &	name (NodeId id) const
	Returns the name of a variable given its id.
const std::string &	name (const DiscreteVariable &var) const
	Returns the name of a variable.
Operators.
const DiscreteVariable &	operator[] (NodeId id) const
	Returns a discrete variable given it's node id.
NodeId	operator[] (const DiscreteVariable &var) const
	Returns a node id given it's variable.
Accessor by name
NodeId	idFromName (const std::string &name) const
const DiscreteVariable &	variableFromName (const std::string &name) const

Private Member Functions
void	_copy_ (const VariableNodeMap &source)
	effectively do the copy (for copy constructor or operator=)

Private Attributes
Bijection< NodeId, const DiscreteVariable * >	_nodes2vars_
	Bijection between the node's NodeIds and the variables.
Bijection< std::string, NodeId >	_names2nodes_
	HashTable for easely find an id from a name.

Detailed Description

Container used to map discrete variables with nodes.

Warning

VariableNodeMap ensures that every name of variable is unique in the container.

Definition at line 68 of file variableNodeMap.h.

Constructor & Destructor Documentation

VariableNodeMap() [1/2]

gum::VariableNodeMap::VariableNodeMap

(

)

Default constructor.

Referenced by VariableNodeMap(), _copy_(), and operator=().

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VariableNodeMap() [2/2]

gum::VariableNodeMap::VariableNodeMap

(

const VariableNodeMap &

source

)

Copy constructor Proceed a deep copy: all variables are copied but keep the same node id.

References VariableNodeMap().

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~VariableNodeMap()

gum::VariableNodeMap::~VariableNodeMap

(

)

Destructor.

Member Function Documentation

_copy_()

void gum::VariableNodeMap::_copy_ ( const VariableNodeMap & source )

private

effectively do the copy (for copy constructor or operator=)

References VariableNodeMap().

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changeName()

void gum::VariableNodeMap::changeName	(	NodeId	id,
		const std::string &	new_name )

we allow the user to change the name of a variable

Exceptions

DuplicateLabel	if this name already exists
NotFound	Raised if no nodes matches id.

clear()

void gum::VariableNodeMap::clear

(

)

removes all the associations

erase() [1/2]

void gum::VariableNodeMap::erase

(

const DiscreteVariable &

var

)

Removes a var and it's id of this mapping. The pointer is deleted.

Exceptions

NotFound

Raised if no nodes matches id.

erase() [2/2]

void gum::VariableNodeMap::erase

(

NodeId

id

)

Removes a var and it's id of this mapping. The pointer is deleted.

Exceptions

NotFound

Raised if no nodes matches id.

exists() [1/2]

bool gum::VariableNodeMap::exists

(

const DiscreteVariable &

var

)

const

Return true if var matches a node.

exists() [2/2]

bool gum::VariableNodeMap::exists

(

NodeId

id

)

const

Return true if id matches a node.

get() [1/2]

NodeId gum::VariableNodeMap::get

(

const DiscreteVariable &

var

)

const

Returns a node id given it's variable.

Exceptions

NotFound

Raised if no nodes matches var.

get() [2/2]

const DiscreteVariable & gum::VariableNodeMap::get

(

NodeId

id

)

const

Returns a discrete variable given it's node id.

Exceptions

NotFound

Raised if no nodes matches id.

Referenced by gum::learning::DAG2BNLearner::createBNwithEM(), and gum::GraphicalModel::variables().

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idFromName()

NodeId gum::VariableNodeMap::idFromName

(

const std::string &

name

)

const

Exceptions

NotFound

if no such name exists in the graph.

References name().

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insert()

NodeId gum::VariableNodeMap::insert	(	NodeId	id,
		const DiscreteVariable &	var )

Maps id with var.

Warning

Var is added by copy.

Exceptions

DuplicateLabel	if this name already exists
DuplicateElement	if this id already exists

Returns

Returns id (useful in some case);

name() [1/2]

const std::string & gum::VariableNodeMap::name

(

const DiscreteVariable &

var

)

const

Returns the name of a variable.

Parameters

var	The variable.

Returns

var's name.

Exceptions

NotFound

Raised if var is not in this VariableNodeMap.

name() [2/2]

const std::string & gum::VariableNodeMap::name

(

NodeId

id

)

const

Returns the name of a variable given its id.

Parameters

id	The variable's id.

Returns

id's name.

Exceptions

NotFound

Raised if no variable matches id.

Referenced by gum::IBayesNet< double >::empty(), idFromName(), and variableFromName().

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operator=()

VariableNodeMap & gum::VariableNodeMap::operator=

(

const VariableNodeMap &

source

)

Copy operator.

References VariableNodeMap().

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operator[]() [1/2]

NodeId gum::VariableNodeMap::operator[]

(

const DiscreteVariable &

var

)

const

Returns a node id given it's variable.

Exceptions

NotFound

Raised if no nodes matches var.

operator[]() [2/2]

const DiscreteVariable & gum::VariableNodeMap::operator[]

(

NodeId

id

)

const

Returns a discrete variable given it's node id.

Exceptions

NotFound

Raised if no nodes matches id.

size()

Size gum::VariableNodeMap::size

(

)

const

give the size

toString()

std::string gum::VariableNodeMap::toString

(

)

const

friendly displays the content of the VariableNodeMap

variableFromName()

const DiscreteVariable & gum::VariableNodeMap::variableFromName

(

const std::string &

name

)

const

Exceptions

NotFound

if no such name exists in the graph.

References name().

Referenced by gum::IBayesNet< double >::ids().

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Member Data Documentation

_names2nodes_

Bijection< std::string, NodeId > gum::VariableNodeMap::_names2nodes_

private

HashTable for easely find an id from a name.

Definition at line 190 of file variableNodeMap.h.

_nodes2vars_

Bijection< NodeId, const DiscreteVariable* > gum::VariableNodeMap::_nodes2vars_

private

Bijection between the node's NodeIds and the variables.

Definition at line 187 of file variableNodeMap.h.

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

• agrum/base/graphicalModels/variableNodeMap.h