#include <qgsfeaturefilterprovider.h>

Inheritance diagram for QgsFeatureFilterProvider:

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Public Member Functions
	QgsFeatureFilterProvider ()=default
	Constructor. More...

virtual	~QgsFeatureFilterProvider ()=default

virtual QgsFeatureFilterProvider *	clone () const =0
	Create a clone of the feature filter provider. More...

virtual void	filterFeatures (const QgsVectorLayer *layer, QgsFeatureRequest &featureRequest) const =0
	Add additional filters to the feature request to further restrict the features returned by the request. More...

Detailed Description

Abstract interface for use by classes that filter the features of a layer. A QgsFeatureFilterProvider provides a method for modifying a QgsFeatureRequest in place to apply additional filters to the request.

Since: QGIS 2.14

Definition at line 40 of file qgsfeaturefilterprovider.h.

Constructor & Destructor Documentation

◆ QgsFeatureFilterProvider()

QgsFeatureFilterProvider::QgsFeatureFilterProvider ( )

default

Constructor.

◆ ~QgsFeatureFilterProvider()

virtual QgsFeatureFilterProvider::~QgsFeatureFilterProvider ( )

virtualdefault

Member Function Documentation

◆ clone()

virtual QgsFeatureFilterProvider* QgsFeatureFilterProvider::clone ( ) const

pure virtual

Create a clone of the feature filter provider.

Returns: a new clone

Implemented in QgsAccessControl, QgsFeatureFilter, and QgsFeatureFilterProviderGroup.

◆ filterFeatures()

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

pure virtual

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