QgsExpressionContextScopeGenerator class

Abstract interface for generating an expression context scope.

Contents

Derived classes

class QgsVectorLayer
Represents a vector layer which manages a vector based data sets.
class QgsVectorLayerSelectedFeatureSource
QgsFeatureSource subclass for the selected features from a QgsVectorLayer.

Public functions

auto createExpressionContextScope() const -> QgsExpressionContextScope* pure virtual
This method needs to be reimplemented in all classes which implement this interface and return an expression context scope.

Function documentation

QgsExpressionContextScope* QgsExpressionContextScopeGenerator::createExpressionContextScope() const pure virtual

This method needs to be reimplemented in all classes which implement this interface and return an expression context scope.