QgsOgcUtilsExpressionFromFilter Class Reference

Internal use by QgsOgcUtils. More...

#include <qgsogcutils.h>

Public Member Functions
	QgsOgcUtilsExpressionFromFilter (QgsOgcUtils::FilterVersion version=QgsOgcUtils::FILTER_OGC_1_0, const QgsVectorLayer *layer=nullptr)
	Constructor for QgsOgcUtilsExpressionFromFilter. More...
QString	errorMessage () const
	Returns the underlying error message, or an empty string in case of no error. More...
QgsExpressionNodeBinaryOperator *	nodeBinaryOperatorFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with binary operators. More...
QgsExpressionNodeColumnRef *	nodeColumnRefFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with column references. More...
QgsExpressionNode *	nodeFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document element. More...
QgsExpressionNodeFunction *	nodeFunctionFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with functions. More...
QgsExpressionNode *	nodeIsBetweenFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with boudnaries operator. More...
QgsExpressionNode *	nodeLiteralFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with literal tag. More...
QgsExpressionNodeUnaryOperator *	nodeNotFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with Not operator. More...
QgsExpressionNodeBinaryOperator *	nodePropertyIsNullFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with IsNull operator. More...
QgsExpressionNodeFunction *	nodeSpatialOperatorFromOgcFilter (const QDomElement &element)
	Returns an expression node from a WFS filter embedded in a document with spatial operators. More...

Detailed Description

Internal use by QgsOgcUtils.

Note

not available in Python bindings

Since

QGIS 3.4

Definition at line 385 of file qgsogcutils.h.

Constructor & Destructor Documentation

QgsOgcUtilsExpressionFromFilter::QgsOgcUtilsExpressionFromFilter	(	QgsOgcUtils::FilterVersion	version = QgsOgcUtils::FILTER_OGC_1_0,
		const QgsVectorLayer *	layer = nullptr
	)

Constructor for QgsOgcUtilsExpressionFromFilter.

Parameters

version	WFS Version
layer	Layer to use to retrieve field values from literal filters

Definition at line 3096 of file qgsogcutils.cpp.

Member Function Documentation

QString QgsOgcUtilsExpressionFromFilter::errorMessage

(

)

const

Returns the underlying error message, or an empty string in case of no error.

Definition at line 3511 of file qgsogcutils.cpp.

QgsExpressionNodeBinaryOperator * QgsOgcUtilsExpressionFromFilter::nodeBinaryOperatorFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with binary operators.

Definition at line 3156 of file qgsogcutils.cpp.

QgsExpressionNodeColumnRef * QgsOgcUtilsExpressionFromFilter::nodeColumnRefFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with column references.

Definition at line 3301 of file qgsogcutils.cpp.

QgsExpressionNode * QgsOgcUtilsExpressionFromFilter::nodeFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document element.

A null pointer is returned when an error happened.

Parameters

element

The WFS filter

Definition at line 3109 of file qgsogcutils.cpp.

QgsExpressionNodeFunction * QgsOgcUtilsExpressionFromFilter::nodeFunctionFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with functions.

Definition at line 3432 of file qgsogcutils.cpp.

QgsExpressionNode * QgsOgcUtilsExpressionFromFilter::nodeIsBetweenFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with boudnaries operator.

Definition at line 3468 of file qgsogcutils.cpp.

QgsExpressionNode * QgsOgcUtilsExpressionFromFilter::nodeLiteralFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with literal tag.

Definition at line 3312 of file qgsogcutils.cpp.

QgsExpressionNodeUnaryOperator * QgsOgcUtilsExpressionFromFilter::nodeNotFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with Not operator.

Definition at line 3399 of file qgsogcutils.cpp.

QgsExpressionNodeBinaryOperator * QgsOgcUtilsExpressionFromFilter::nodePropertyIsNullFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with IsNull operator.

Definition at line 3415 of file qgsogcutils.cpp.

QgsExpressionNodeFunction * QgsOgcUtilsExpressionFromFilter::nodeSpatialOperatorFromOgcFilter

(

const QDomElement &

element

)

Returns an expression node from a WFS filter embedded in a document with spatial operators.

Definition at line 3267 of file qgsogcutils.cpp.

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

• /build/qgis-3.4.15+24xenial/src/core/qgsogcutils.h
• /build/qgis-3.4.15+24xenial/src/core/qgsogcutils.cpp