QgsExpression::NodeFunction Class Reference

#include <qgsexpression.h>

Inheritance diagram for QgsExpression::NodeFunction:

Collaboration diagram for QgsExpression::NodeFunction:

Public Member Functions
	NodeFunction (int fnIndex, NodeList *args)
virtual	~NodeFunction ()
int	fnIndex () const
NodeList *	args () const
virtual NodeType	nodeType () const
virtual bool	prepare (QgsExpression *parent, const QgsFields &fields)
virtual QVariant	eval (QgsExpression *parent, const QgsFeature *f)
virtual QString	dump () const
virtual QStringList	referencedColumns () const
virtual bool	needsGeometry () const
virtual void	accept (Visitor &v) const
Public Member Functions inherited from QgsExpression::Node
virtual	~Node ()

Protected Attributes
int	mFnIndex
NodeList *	mArgs

Detailed Description

Definition at line 485 of file qgsexpression.h.

Constructor & Destructor Documentation

QgsExpression::NodeFunction::NodeFunction ( int  fnIndex, NodeList *  args  )

inline

Definition at line 488 of file qgsexpression.h.

virtual QgsExpression::NodeFunction::~NodeFunction ( )

inlinevirtual

Definition at line 490 of file qgsexpression.h.

Member Function Documentation

virtual void QgsExpression::NodeFunction::accept ( Visitor &  v ) const

inlinevirtual

Implements QgsExpression::Node.

Definition at line 502 of file qgsexpression.h.

References QgsExpression::Visitor::visit().

NodeList* QgsExpression::NodeFunction::args ( ) const

inline

Definition at line 493 of file qgsexpression.h.

Referenced by QgsOgcUtils::expressionFunctionToOgcFilter(), and geometryFromConstExpr().

QString QgsExpression::NodeFunction::dump ( ) const

virtual

Implements QgsExpression::Node.

Definition at line 2422 of file qgsexpression.cpp.

References QgsExpression::Functions(), QgsExpression::Function::name(), and QgsExpression::Function::params().

QVariant QgsExpression::NodeFunction::eval ( QgsExpression *  parent, const QgsFeature *  f  )

virtual

Implements QgsExpression::Node.

Definition at line 2383 of file qgsexpression.cpp.

References ENSURE_NO_EVAL_ERROR, QgsExpression::Node::eval(), QgsExpression::Function::func(), QgsExpression::Functions(), isNull(), and QgsExpression::Function::name().

int QgsExpression::NodeFunction::fnIndex ( ) const

inline

Definition at line 492 of file qgsexpression.h.

Referenced by QgsOgcUtils::expressionFunctionToOgcFilter(), geometryFromConstExpr(), and isGeometryColumn().

virtual bool QgsExpression::NodeFunction::needsGeometry ( ) const

inlinevirtual

Implements QgsExpression::Node.

Definition at line 501 of file qgsexpression.h.

References QgsExpression::Functions(), and QgsExpression::Node::needsGeometry().

virtual NodeType QgsExpression::NodeFunction::nodeType ( ) const

inlinevirtual

Implements QgsExpression::Node.

Definition at line 495 of file qgsexpression.h.

References QgsExpression::ntFunction.

bool QgsExpression::NodeFunction::prepare ( QgsExpression *  parent, const QgsFields &  fields  )

virtual

Implements QgsExpression::Node.

Definition at line 2409 of file qgsexpression.cpp.

References QgsExpression::Node::prepare().

virtual QStringList QgsExpression::NodeFunction::referencedColumns ( ) const

inlinevirtual

Implements QgsExpression::Node.

Definition at line 500 of file qgsexpression.h.

References QgsExpression::Node::referencedColumns().

Member Data Documentation

NodeList* QgsExpression::NodeFunction::mArgs

protected

Definition at line 507 of file qgsexpression.h.

int QgsExpression::NodeFunction::mFnIndex

protected

Definition at line 506 of file qgsexpression.h.

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

• /tmp/buildd/qgis-2.4.0+unstable1/src/core/qgsexpression.h
• /tmp/buildd/qgis-2.4.0+unstable1/src/core/qgsexpression.cpp