te::fe::Expression Class Reference

This is an abstract class that models a Filter Encoding expression. More...

#include <Expression.h>

Inheritance diagram for te::fe::Expression:

Public Types
typedef void	ReturnType
typedef Visitor	VisitorType

Public Member Functions
virtual ReturnType	accept (VisitorType &guest) const =0
	It call the visit method from the guest object. More...
virtual Expression *	clone () const =0
	It returns a clone of this object. More...
Initializer Methods
Methods related to instantiation and destruction.
	Expression ()
	It initializes a new Expression. More...
virtual	~Expression ()
	Virtual destructor. More...

Private Member Functions
Not Allowed Methods
No copy allowed.
	Expression (const Expression &rhs)
	No copy constructor allowed. More...
Expression &	operator= (const Expression &rhs)
	No assignment operator allowed. More...

Detailed Description

This is an abstract class that models a Filter Encoding expression.

An expression is a combination of one or more symbols that evaluate to single boolean value of true or false.

See also

BinaryOperator, PropertyName, Function, Literal, BinaryComparisonOp, PropertyIsBetween

Definition at line 50 of file Expression.h.

Member Typedef Documentation

typedef void te::common::BaseVisitable< Visitor , void >::ReturnType

inherited

Definition at line 58 of file BaseVisitable.h.

typedef Visitor te::common::BaseVisitable< Visitor , void >::VisitorType

inherited

Definition at line 57 of file BaseVisitable.h.

Constructor & Destructor Documentation

te::fe::Expression::Expression ( )

inline

It initializes a new Expression.

Definition at line 62 of file Expression.h.

virtual te::fe::Expression::~Expression ( )

inlinevirtual

Virtual destructor.

Definition at line 65 of file Expression.h.

te::fe::Expression::Expression ( const Expression &  rhs )

private

No copy constructor allowed.

Parameters

rhs	The other instance.

Member Function Documentation

virtual ReturnType te::common::BaseVisitable< Visitor , void >::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.

virtual Expression* te::fe::Expression::clone ( ) const

pure virtual

It returns a clone of this object.

Returns

A clone of this object.

Implemented in te::fe::BinaryOperator, te::fe::Function, te::se::Interpolate, te::se::Categorize, te::fe::Literal, te::fe::PropertyName, te::se::Recode, te::se::InterpolationPoint, and te::se::MapItem.

Expression& te::fe::Expression::operator= ( const Expression &  rhs )

private

No assignment operator allowed.

Parameters

rhs	The other instance.

Returns

A reference for this.

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

• C:/CC_master/terralib5/src/terralib/fe/Expression.h