QgsFeatureFilterProviderGroup Class Reference

A filter filter provider grouping several filter providers. More...

#include <qgsfeaturefilterprovidergroup.h>

Inheritance diagram for QgsFeatureFilterProviderGroup:

Public Member Functions
	QgsFeatureFilterProviderGroup ()=default
	Constructor.
QgsFeatureFilterProviderGroup &	addProvider (const QgsFeatureFilterProvider *provider)
	Add another filter provider to the group.
QgsFeatureFilterProviderGroup *	clone () const override
	Create a clone of the feature filter provider.
void	filterFeatures (const QgsVectorLayer *layer, QgsFeatureRequest &filterFeatures) const override
	Add additional filters to the feature request to further restrict the features returned by the request.
bool	isFilterThreadSafe () const override
	Returns true if the filterFeature function is thread safe, which will lead to reliance on layer ID instead of the raw layer pointer.
QStringList	layerAttributes (const QgsVectorLayer *layer, const QStringList &attributes) const override
	Returns the list of visible attribute names from a list of attributes names for the given layer.
Public Member Functions inherited from QgsFeatureFilterProvider
	QgsFeatureFilterProvider ()=default
virtual	~QgsFeatureFilterProvider ()=default
virtual void	filterFeatures (const QString &layerId, QgsFeatureRequest &featureRequest) const
	Add additional filters to the feature request to further restrict the features returned by the request.

Detailed Description

A filter filter provider grouping several filter providers.

Deprecated:

QGIS 3.4. Use QgsGroupedFeatureFilterProvider

Definition at line 32 of file qgsfeaturefilterprovidergroup.h.

Constructor & Destructor Documentation

QgsFeatureFilterProviderGroup()

QgsFeatureFilterProviderGroup::QgsFeatureFilterProviderGroup ( )

default

Constructor.

Member Function Documentation

addProvider()

QgsFeatureFilterProviderGroup & QgsFeatureFilterProviderGroup::addProvider

(

const QgsFeatureFilterProvider *

provider

)

Add another filter provider to the group.

Parameters

provider

The provider to add

Returns

itself

Definition at line 54 of file qgsfeaturefilterprovidergroup.cpp.

clone()

QgsFeatureFilterProviderGroup * QgsFeatureFilterProviderGroup::clone ( ) const

overridevirtual

Create a clone of the feature filter provider.

Returns

a new clone

Implements QgsFeatureFilterProvider.

Definition at line 47 of file qgsfeaturefilterprovidergroup.cpp.

filterFeatures()

void QgsFeatureFilterProviderGroup::filterFeatures ( const QgsVectorLayer *  layer, QgsFeatureRequest &  featureRequest  ) const

overridevirtual

Add additional filters to the feature request to further restrict the features returned by the request.

Derived classes must implement this method.

Parameters

layer	the layer to filter
featureRequest	the feature request to update

Deprecated:

QGIS 4.0. Use the layer ID variant.

Reimplemented from QgsFeatureFilterProvider.

Definition at line 21 of file qgsfeaturefilterprovidergroup.cpp.

isFilterThreadSafe()

bool QgsFeatureFilterProviderGroup::isFilterThreadSafe ( ) const

inlineoverridevirtual

Returns true if the filterFeature function is thread safe, which will lead to reliance on layer ID instead of the raw layer pointer.

Since

QGIS 4.0

Deprecated:

QGIS 4.0

Reimplemented from QgsFeatureFilterProvider.

Definition at line 38 of file qgsfeaturefilterprovidergroup.h.

layerAttributes()

QStringList QgsFeatureFilterProviderGroup::layerAttributes ( const QgsVectorLayer *  layer, const QStringList &  attributes  ) const

overridevirtual

Returns the list of visible attribute names from a list of attributes names for the given layer.

Since

QGIS 3.18

Implements QgsFeatureFilterProvider.

Definition at line 36 of file qgsfeaturefilterprovidergroup.cpp.

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

• /build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/server/qgsfeaturefilterprovidergroup.h
• /build/qgis-3.99.0+git20250718+f78f5286a64+99sid/src/server/qgsfeaturefilterprovidergroup.cpp