QgsExpression::NodeFunction Class Reference

#include <qgsexpression.h>

Inheritance diagram for QgsExpression::NodeFunction:

Collaboration diagram for QgsExpression::NodeFunction:

List of all members.

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

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Detailed Description

Definition at line 479 of file qgsexpression.h.

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Constructor & Destructor Documentation

QgsExpression::NodeFunction::NodeFunction	(	int	fnIndex,
		NodeList *	args
	)		[inline]

Definition at line 482 of file qgsexpression.h.

virtual QgsExpression::NodeFunction::~NodeFunction

(

)

[inline, virtual]

Definition at line 484 of file qgsexpression.h.

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Member Function Documentation

virtual void QgsExpression::NodeFunction::accept

(

Visitor &

v

)

const [inline, virtual]

Implements QgsExpression::Node.

Definition at line 496 of file qgsexpression.h.

References QgsExpression::Visitor::visit().

NodeList* QgsExpression::NodeFunction::args

(

)

const [inline]

Definition at line 487 of file qgsexpression.h.

Referenced by QgsOgcUtils::expressionFunctionToOgcFilter().

QString QgsExpression::NodeFunction::dump

(

)

const [virtual]

Implements QgsExpression::Node.

Definition at line 2204 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 2165 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 486 of file qgsexpression.h.

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

virtual bool QgsExpression::NodeFunction::needsGeometry

(

)

const [inline, virtual]

Implements QgsExpression::Node.

Definition at line 495 of file qgsexpression.h.

References QgsExpression::Node::needsGeometry().

virtual NodeType QgsExpression::NodeFunction::nodeType

(

)

const [inline, virtual]

Implements QgsExpression::Node.

Definition at line 489 of file qgsexpression.h.

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

Implements QgsExpression::Node.

Definition at line 2191 of file qgsexpression.cpp.

References QgsExpression::Node::prepare().

virtual QStringList QgsExpression::NodeFunction::referencedColumns

(

)

const [inline, virtual]

Implements QgsExpression::Node.

Definition at line 494 of file qgsexpression.h.

References QgsExpression::Node::referencedColumns().

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Member Data Documentation

NodeList* QgsExpression::NodeFunction::mArgs [protected]

Definition at line 501 of file qgsexpression.h.

int QgsExpression::NodeFunction::mFnIndex [protected]

Definition at line 500 of file qgsexpression.h.

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

• src/core/qgsexpression.h
• src/core/qgsexpression.cpp