ELAM::BinaryOperator Class Reference

Wraps a particular binary operator. More...

#include <elambinary.h>

List of all members.

Public Member Functions
	BinaryOperator (const BinaryOperator &)
	BinaryOperator ()
	~BinaryOperator ()
BinaryOperator &	operator= (const BinaryOperator &op)
	the operator becomes a shared copy of op and abandones its old link
void	setCallback (BinaryOperatorCall callback, QString type1, QString type2)
	sets a callback function for the operator and a specific typ
void	setCallback (BinaryOperatorCall callback, int type1, int type2)
	sets a callback function for the operator and a specific typ
BinaryOperatorCall	getCallback (QString type1, QString type2) const
	returns the callback function attached to the type or NULL if there is none
BinaryOperatorCall	getCallback (int type1, int type2) const
	returns the callback function attached to the type or NULL if there is none
void	removeCallback (QString, QString)
	removes the type from this operators list
void	removeCallback (int, int)
	removes the type from this operators list
QList< QPair< QString, QString > >	getTypeNames () const
	returns all combinations of type names that have a valid callback in this operator
QList< QPair< int, int > >	getTypeIds () const
	returns all combinations of type IDs that have a valid callback in this operator
QVariant	execute (const QVariant &, const QVariant &, Engine &) const
	calls the callback function associated with the type of the argument, throws an exception if there is no callback
bool	isNull () const
	true if this operator has no callbacks

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Detailed Description

Wraps a particular binary operator.

You can use the methods of this class to change the routines that handle the operator and the types on which it operates. Instances of this class are implicitly shared - meaning calls on a copy of an instance are also visible on the original and all other copies.

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Constructor & Destructor Documentation

ELAM::BinaryOperator::BinaryOperator

(

const BinaryOperator &

)

ELAM::BinaryOperator::BinaryOperator

(

)

ELAM::BinaryOperator::~BinaryOperator

(

)

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Member Function Documentation

QVariant ELAM::BinaryOperator::execute	(	const QVariant &	,
		const QVariant &	,
		Engine &
	)			const

calls the callback function associated with the type of the argument, throws an exception if there is no callback

BinaryOperatorCall ELAM::BinaryOperator::getCallback	(	QString	type1,
		QString	type2
	)			const

returns the callback function attached to the type or NULL if there is none

BinaryOperatorCall ELAM::BinaryOperator::getCallback	(	int	type1,
		int	type2
	)			const

returns the callback function attached to the type or NULL if there is none

QList<QPair<int,int> > ELAM::BinaryOperator::getTypeIds

(

)

const

returns all combinations of type IDs that have a valid callback in this operator

QList<QPair<QString,QString> > ELAM::BinaryOperator::getTypeNames

(

)

const

returns all combinations of type names that have a valid callback in this operator

bool ELAM::BinaryOperator::isNull

(

)

const

true if this operator has no callbacks

BinaryOperator& ELAM::BinaryOperator::operator=

(

const BinaryOperator &

op

)

the operator becomes a shared copy of op and abandones its old link

void ELAM::BinaryOperator::removeCallback	(	int	,
		int
	)

removes the type from this operators list

void ELAM::BinaryOperator::removeCallback	(	QString	,
		QString
	)

removes the type from this operators list

void ELAM::BinaryOperator::setCallback	(	BinaryOperatorCall	callback,
		int	type1,
		int	type2
	)

sets a callback function for the operator and a specific typ

Parameters:

	callback	the function to call, if it is null the type is deleted from this operators type list
	type	the type of variable to work on, this must be a type registered with QVariant, if this type is already known to the operator its callback is replaced

void ELAM::BinaryOperator::setCallback	(	BinaryOperatorCall	callback,
		QString	type1,
		QString	type2
	)

sets a callback function for the operator and a specific typ

Parameters:

	callback	the function to call, if it is null the type is deleted from this operators type list
	type	the type of variable to work on, this must be a type registered with QVariant, if this type is already known to the operator its callback is replaced

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

• elambinary.h