The definition of a function that can be used in a query object. More...

#include <FunctionDefn.h>

Inheritance diagram for te::da::FunctionDefn:

Public Member Functions
void	add (FunctionParameter *p)
	It adds the parameter to the function list of parameters. More...

	FunctionDefn (const std::string &name, int retValType=te::dt::VOID_TYPE, bool isAggregate=false, std::string *description=0)
	Constructor. More...

std::string *	getDescription () const
	It returns a brief description about the function. More...

const std::string &	getName () const
	It returns the function name. More...

std::size_t	getNumParams () const
	It returns the number of parameters for the function. More...

int	getRetValType () const
	It returns the data type of the return value. More...

bool	isAggregate () const
	It returns true if it is an aggregate function, otherwise, returns false. More...

FunctionParameter *	operator[] (std::size_t i) const
	It returns the i-th function parameter. More...

void	setDescription (std::string *description)
	It sets a brief description about the function. More...

void	SetIsAggregate (bool a)
	It tells if the function is an aggregate function or not. More...

void	setName (const std::string &name)
	It sets the function name;. More...

void	setRetValType (int r)
	It sets the data type of the return value. More...

	~FunctionDefn ()
	Destructor. More...

Protected Attributes
std::string *	m_description
	A brief description of the function. More...

bool	m_isAggregate
	A flag that defines if the function is an aggregate one. More...

std::string	m_name
	The function name. It may be an operator symbol or just a regular name like st_intersects. More...

std::vector< FunctionParameter * >	m_params
	The list of arguments. More...

int	m_retValType
	Data type of the return value. More...

Detailed Description

The definition of a function that can be used in a query object.

All functions must have a name in lower case letters.

See also: FunctionCatalog, FunctionCatalogManager, FunctionParameter

Definition at line 56 of file FunctionDefn.h.

Constructor & Destructor Documentation

te::da::FunctionDefn::FunctionDefn	(	const std::string &	name,
		int	retValType = `te::dt::VOID_TYPE`,
		bool	isAggregate = `false`,
		std::string *	description = `0`
	)

Constructor.

Parameters

name	The function name.
retValType	The return value type (void by default).
isAggregate	Tells if function is an aggregate function (false by default).
description	A brief description about the function (NULL by default). The FunctionDefn will take the ownership of the given description.

te::da::FunctionDefn::~FunctionDefn ( )

Destructor.

Member Function Documentation

void te::da::FunctionDefn::add ( FunctionParameter * p )

inline

It adds the parameter to the function list of parameters.

Parameters

p	The parameter to be added.

Note: The FunctionDefn will take the ownership of the given parameter.

Definition at line 159 of file FunctionDefn.h.

std::string* te::da::FunctionDefn::getDescription ( ) const

inline

It returns a brief description about the function.

Returns: A brief description about the function or NULL if none is provide.

Definition at line 125 of file FunctionDefn.h.

const std::string& te::da::FunctionDefn::getName ( ) const

inline

It returns the function name.

Returns: The function name.

Definition at line 81 of file FunctionDefn.h.

std::size_t te::da::FunctionDefn::getNumParams ( ) const

inline

It returns the number of parameters for the function.

Returns: The number of parameters.

Definition at line 139 of file FunctionDefn.h.

int te::da::FunctionDefn::getRetValType ( ) const

inline

It returns the data type of the return value.

Returns: The data type of the return value.

Definition at line 97 of file FunctionDefn.h.

bool te::da::FunctionDefn::isAggregate ( ) const

inline

It returns true if it is an aggregate function, otherwise, returns false.

Returns: True if it is an aggregate function, otherwise, returns false.

Definition at line 111 of file FunctionDefn.h.

FunctionParameter* te::da::FunctionDefn::operator[] ( std::size_t i ) const

inline

It returns the i-th function parameter.

Parameters

i	The parameter position.

Returns: The i-th function parameter.

Note: It will not check the index range.

Definition at line 150 of file FunctionDefn.h.

void te::da::FunctionDefn::setDescription ( std::string * description )

It sets a brief description about the function.

Parameters

description A brief description about the function. The FunctionDefn will take the ownership of the given description.

void te::da::FunctionDefn::SetIsAggregate ( bool a )

inline

It tells if the function is an aggregate function or not.

Parameters

a	If true the function is an aggeragte function otherwise it is not.

Definition at line 118 of file FunctionDefn.h.

void te::da::FunctionDefn::setName ( const std::string & name )

inline

It sets the function name;.

Parameters

name	The function name.

Note: If the function belongs to a FunctionCatalog, don't call this method!

Definition at line 90 of file FunctionDefn.h.

void te::da::FunctionDefn::setRetValType ( int r )

inline

It sets the data type of the return value.

Parameters

r	The data type of the return value.

Definition at line 104 of file FunctionDefn.h.

Member Data Documentation

std::string* te::da::FunctionDefn::m_description

protected

A brief description of the function.

Definition at line 167 of file FunctionDefn.h.

bool te::da::FunctionDefn::m_isAggregate

protected

A flag that defines if the function is an aggregate one.

Definition at line 166 of file FunctionDefn.h.

std::string te::da::FunctionDefn::m_name

protected

The function name. It may be an operator symbol or just a regular name like st_intersects.

Definition at line 163 of file FunctionDefn.h.

std::vector<FunctionParameter*> te::da::FunctionDefn::m_params

protected

The list of arguments.

Definition at line 164 of file FunctionDefn.h.

int te::da::FunctionDefn::m_retValType

protected

Data type of the return value.

Definition at line 165 of file FunctionDefn.h.

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

/home/castejon/castejon_files/develop/terralib5/git_master/terralib5/src/terralib/dataaccess/query/FunctionDefn.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation