QGIS API Documentation 3.27.0-Master (0a97e3138f)
qgsexpressioncontextgenerator.h
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1/***************************************************************************
2 qgsexpressioncontextgenerator.h - QgsExpressionContextGenerator
3
4 ---------------------
5 begin : 1.8.2016
6 copyright : (C) 2016 by Matthias Kuhn
8 ***************************************************************************
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 ***************************************************************************/
16#ifndef QGSEXPRESSIONCONTEXTGENERATOR_H
17#define QGSEXPRESSIONCONTEXTGENERATOR_H
18
20
37{
38 public:
39
47
48 virtual ~QgsExpressionContextGenerator() = default;
49};
50
51#endif // QGSEXPRESSIONCONTEXTGENERATOR_H
Abstract interface for generating an expression context.
virtual QgsExpressionContext createExpressionContext() const =0
This method needs to be reimplemented in all classes which implement this interface and return an exp...
virtual ~QgsExpressionContextGenerator()=default
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...