QgsExpressionContextScopeGenerator Class Reference

Abstract interface for generating an expression context scope. More...

#include <qgsexpressioncontextscopegenerator.h>

Inheritance diagram for QgsExpressionContextScopeGenerator:

Public Member Functions
virtual	~QgsExpressionContextScopeGenerator ()=default
virtual QgsExpressionContextScope *	createExpressionContextScope () const =0
	This method needs to be reimplemented in all classes which implement this interface and return an expression context scope. More...

Detailed Description

Abstract interface for generating an expression context scope.

Since

QGIS 3.0

Definition at line 28 of file qgsexpressioncontextscopegenerator.h.

Constructor & Destructor Documentation

~QgsExpressionContextScopeGenerator()

virtual QgsExpressionContextScopeGenerator::~QgsExpressionContextScopeGenerator ( )

virtualdefault

Member Function Documentation

createExpressionContextScope()

virtual 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.

Since

QGIS 3.0

Implemented in QgsVectorLayer, QgsProject, QgsTemporalNavigationObject, and QgsVectorLayerSelectedFeatureSource.

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

• /build/qgis-3.30.0+99sid/src/core/qgsexpressioncontextscopegenerator.h