A query encoder for unary operator expressions. More...

#include <IsNullOpEncoder.h>

Inheritance diagram for te::da::IsNullOpEncoder:

Public Member Functions
	IsNullOpEncoder (const std::string &name)
	Constructor.

void	toSQL (const Function &f, std::string &buff, SQLVisitor &v) const
	It encodes the function to a SQL notation.

	~IsNullOpEncoder ()
	Destructor.

Protected Attributes
std::string	m_name
	The alias to the function.

Detailed Description

A query encoder for unary operator expressions.

It encodes a binary operator using the following convetion: (op arg1).

See also: Function, TemplateEncoder, SQLFunctionEncoder, BinaryOpEncoder, FunctionEncoder, FunctionNoArgsEncoder

Definition at line 45 of file IsNullOpEncoder.h.

Constructor & Destructor Documentation

◆ IsNullOpEncoder()

te::da::IsNullOpEncoder::IsNullOpEncoder ( const std::string & name )

inline

Constructor.

Parameters

name	Function name.

Definition at line 54 of file IsNullOpEncoder.h.

◆ ~IsNullOpEncoder()

te::da::IsNullOpEncoder::~IsNullOpEncoder ( )

inline

Destructor.

Definition at line 57 of file IsNullOpEncoder.h.

Member Function Documentation

◆ toSQL()

void te::da::IsNullOpEncoder::toSQL	(	const Function &	f,
		std::string &	buff,
		SQLVisitor &	v
	)		const

virtual

It encodes the function to a SQL notation.

This method will encode the function in prefix unary operator notation: (op operand). For example, the '-' function is encoded as: -A.

Parameters

f	The function to be translated to a SQL notation.
alias	The function alias in the data source query language.
buff	The destination string buffer where the translation will be written.
v	The SQL visitor that will be used to visit the arguments expression.

Implements te::da::SQLFunctionEncoder.

Member Data Documentation

◆ m_name

std::string te::da::SQLFunctionEncoder::m_name

protectedinherited

The alias to the function.

Definition at line 88 of file SQLFunctionEncoder.h.

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

/home/castejon/castejon_files/develop/terralib5/git_release/src/terralib/dataaccess/query/IsNullOpEncoder.h

Public Member Functions

Protected Attributes