QgsFeatureFilterProvider Class Reference

Abstract interface for use by classes that filter the features of a layer. More...

#include <qgsfeaturefilterprovider.h>

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

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

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

• /tmp/buildd/qgis-3.0.2+14stretch/src/core/qgsfeaturefilterprovider.h