Spatial centroid operator. More...

#include <ST_Centroid.h>

Inheritance diagram for te::da::ST_Centroid:

Public Types
typedef R	ReturnType

typedef QueryVisitor	VisitorType

Public Member Functions
virtual ReturnType	accept (VisitorType &guest) const =0
	It call the visit method from the guest object. More...

void	add (Expression *arg)
	It adds the argument to the function list of arguments. More...

Expression *	clone () const
	It creates a new copy of this expression. More...

Expression *	getArg (std::size_t i) const
	It returns the i-th function argument. More...

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

std::size_t	getNumArgs () const
	It returns the number of arguments informed to the function. More...

ST_Centroid &	operator= (const ST_Centroid &rhs)

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

TE_DEFINE_VISITABLE	ST_Centroid (const te::gm::Geometry &g)
	Constructor. More...

	ST_Centroid (const te::da::PropertyName &prop)
	Constructor. More...

	ST_Centroid (const Expression &e)
	Constructor. More...

	~ST_Centroid ()
	Destructor. More...

Protected Attributes
std::vector< Expression * >	m_args
	The list of arguments. More...

std::string	m_name
	The function name. May be an operator symbol or just a regular name like ST_Intersects. More...

Detailed Description

Spatial centroid operator.

This function is just a syntatic-suggar.

See also: Function

Definition at line 50 of file ST_Centroid.h.

Member Typedef Documentation

typedef R te::common::BaseVisitable< QueryVisitor , R >::ReturnType

inherited

Definition at line 58 of file BaseVisitable.h.

typedef QueryVisitor te::common::BaseVisitable< QueryVisitor , R >::VisitorType

inherited

Definition at line 57 of file BaseVisitable.h.

Constructor & Destructor Documentation

te::da::ST_Centroid::ST_Centroid ( const te::gm::Geometry & g )

Constructor.

Parameters

g	The geometry literal.
p	Precision.

Definition at line 33 of file ST_Centroid.cpp.

References te::da::Function::m_args.

te::da::ST_Centroid::ST_Centroid ( const te::da::PropertyName & prop )

Constructor.

Parameters

prop	The geometry property name.
p	Precision.

Definition at line 40 of file ST_Centroid.cpp.

References te::da::PropertyName::clone(), and te::da::Function::m_args.

te::da::ST_Centroid::ST_Centroid ( const Expression & e )

Constructor.

Parameters

e	The expression.

Definition at line 46 of file ST_Centroid.cpp.

References te::da::Expression::clone(), and te::da::Function::m_args.

te::da::ST_Centroid::~ST_Centroid ( )

Destructor.

Definition at line 52 of file ST_Centroid.cpp.

Member Function Documentation

virtual ReturnType te::common::BaseVisitable< QueryVisitor , R >::accept ( VisitorType & guest ) const

pure virtualinherited

It call the visit method from the guest object.

Parameters

guest The guest or visitor.

Returns: Any valid value define by the template type R.

void te::da::Function::add ( Expression * arg )

inherited

It adds the argument to the function list of arguments.

Parameters

arg	The argument to be added.

Note: The Function will take the ownership of the given argument.

Definition at line 79 of file Function.cpp.

Referenced by te::map::QueryEncoder::getExpression(), te::da::ObjectIdSet::getExpression(), and te::map::QueryEncoder::visit().

te::da::Expression * te::da::ST_Centroid::clone ( ) const

virtual

It creates a new copy of this expression.

Reimplemented from te::da::Function.

Definition at line 62 of file ST_Centroid.cpp.

te::da::Expression * te::da::Function::getArg ( std::size_t i ) const

inherited

It returns the i-th function argument.

Parameters

i	The argument position.

Returns: The it-th function argument.

Definition at line 67 of file Function.cpp.

Referenced by te::da::SpatialRestrictionVisitor::getGeometryRestriction(), te::da::SpatialRestrictionVisitor::getPropertyName(), te::da::SpatialRestrictionVisitor::isFromEnvelope(), and te::serialize::xml::Save().

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

inlineinherited

It returns the function name.

Returns: The function name.

Definition at line 79 of file Function.h.

Referenced by te::da::AttributeRestrictionVisitor::getOperator(), te::da::SpatialRestrictionVisitor::getSpatialRelation(), te::da::AttributeRestrictionVisitor::isAttributeRestrictionFunction(), te::da::SpatialRestrictionVisitor::isSpatialRestrictionFunction(), te::serialize::xml::Save(), te::da::SpatialQueryProcessor::supportsSpatialTopologicOperatos(), and te::da::SQLVisitor::visit().

std::size_t te::da::Function::getNumArgs ( ) const

inherited

It returns the number of arguments informed to the function.

Returns: The number of parameters.

Definition at line 62 of file Function.cpp.

Referenced by te::da::SpatialRestrictionVisitor::getGeometryRestriction(), te::da::SpatialRestrictionVisitor::getPropertyName(), te::da::SpatialRestrictionVisitor::isFromEnvelope(), te::serialize::xml::Save(), te::da::FunctionNoArgsEncoder::toSQL(), te::da::BinaryOpEncoder::toSQL(), te::da::UnaryOpEncoder::toSQL(), te::da::FunctionEncoder::toSQL(), te::da::TemplateEncoder::toSQL(), te::da::AttributeRestrictionVisitor::visit(), te::da::SpatialRestrictionVisitor::visit(), and te::da::SQLVisitor::visit().

te::da::ST_Centroid & te::da::ST_Centroid::operator= ( const ST_Centroid & rhs )

Assignment operator.

Definition at line 56 of file ST_Centroid.cpp.

References te::da::Function::operator=().

te::da::Expression * te::da::Function::operator[] ( std::size_t i ) const

inherited

It returns the i-th function argument.

Parameters

i	The argument position.

Returns: The it-th function argument.

Definition at line 73 of file Function.cpp.

Member Data Documentation

std::vector<Expression*> te::da::Function::m_args

protectedinherited

The list of arguments.

Definition at line 118 of file Function.h.

Referenced by te::da::BinaryFunction::BinaryFunction(), te::da::Function::Function(), te::da::Like::Like(), te::da::Function::operator=(), te::da::ST_Area::ST_Area(), te::da::ST_Buffer::ST_Buffer(), ST_Centroid(), te::da::ST_ConvexHull::ST_ConvexHull(), te::da::ST_DistanceBuffer::ST_DistanceBuffer(), te::da::ST_Envelope::ST_Envelope(), te::da::ST_Length::ST_Length(), te::da::ST_Perimeter::ST_Perimeter(), te::da::ST_Relate::ST_Relate(), te::da::ST_Transform::ST_Transform(), te::da::Substring::Substring(), and te::da::UnaryFunction::UnaryFunction().

std::string te::da::Function::m_name

protectedinherited

The function name. May be an operator symbol or just a regular name like ST_Intersects.

Definition at line 117 of file Function.h.

Referenced by te::da::Function::operator=().

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

C:/BB_TL5/terralib5/src/terralib/dataaccess/query/ST_Centroid.h
C:/BB_TL5/terralib5/src/terralib/dataaccess/query/ST_Centroid.cpp

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation