QgsExpression::Visitor Class Reference

support for visitor pattern - algorithms dealing with the expressions may be implemented without modifying the Node classes More...

#include <qgsexpression.h>

Public Member Functions
virtual	~Visitor ()
virtual void	visit (const NodeUnaryOperator &n)=0
virtual void	visit (const NodeBinaryOperator &n)=0
virtual void	visit (const NodeInOperator &n)=0
virtual void	visit (const NodeFunction &n)=0
virtual void	visit (const NodeLiteral &n)=0
virtual void	visit (const NodeColumnRef &n)=0
virtual void	visit (const NodeCondition &n)=0

Detailed Description

support for visitor pattern - algorithms dealing with the expressions may be implemented without modifying the Node classes

Definition at line 583 of file qgsexpression.h.

Constructor & Destructor Documentation

virtual QgsExpression::Visitor::~Visitor ( )

inlinevirtual

Definition at line 586 of file qgsexpression.h.

Member Function Documentation

virtual void QgsExpression::Visitor::visit ( const NodeUnaryOperator &  n )

pure virtual

Referenced by QgsExpression::NodeUnaryOperator::accept(), QgsExpression::NodeBinaryOperator::accept(), QgsExpression::NodeInOperator::accept(), QgsExpression::NodeFunction::accept(), QgsExpression::NodeLiteral::accept(), QgsExpression::NodeColumnRef::accept(), and QgsExpression::NodeCondition::accept().

virtual void QgsExpression::Visitor::visit ( const NodeBinaryOperator &  n )

pure virtual

virtual void QgsExpression::Visitor::visit ( const NodeInOperator &  n )

pure virtual

virtual void QgsExpression::Visitor::visit ( const NodeFunction &  n )

pure virtual

virtual void QgsExpression::Visitor::visit ( const NodeLiteral &  n )

pure virtual

virtual void QgsExpression::Visitor::visit ( const NodeColumnRef &  n )

pure virtual

virtual void QgsExpression::Visitor::visit ( const NodeCondition &  n )

pure virtual

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

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/qgsexpression.h