QGIS API Documentation  3.23.0-Master (dd0cd13a00)
qgsproxyfeaturesink.h
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1 /***************************************************************************
2  qgsproxyfeaturesink.h
3  ----------------------
4  begin : April 2020
5  copyright : (C) 2020 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSPROXYFEATURESINK_H
19 #define QGSPROXYFEATURESINK_H
20 
21 #include "qgis_core.h"
22 #include "qgis.h"
23 #include "qgsfeaturesink.h"
24 
25 
39 class CORE_EXPORT QgsProxyFeatureSink : public QgsFeatureSink
40 {
41  public:
42 
47  bool addFeature( QgsFeature &feature, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override { return mSink->addFeature( feature, flags ); }
48  bool addFeatures( QgsFeatureList &features, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override { return mSink->addFeatures( features, flags ); }
49  bool addFeatures( QgsFeatureIterator &iterator, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override { return mSink->addFeatures( iterator, flags ); }
50  QString lastError() const override { return mSink->lastError(); }
51 
55  QgsFeatureSink *destinationSink() { return mSink; }
56 
57  private:
58 
59  QgsFeatureSink *mSink = nullptr;
60 };
61 
62 
63 #endif // QGSPROXYFEATURESINK_H
64 
65 
66 
67 
Wrapper for iterator of features from vector data provider or vector layer.
An interface for objects which accept features via addFeature(s) methods.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
A simple feature sink which proxies feature addition on to another feature sink.
bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds a single feature to the sink.
QString lastError() const override
Returns the most recent error encountered by the sink, e.g.
QgsFeatureSink * destinationSink()
Returns the destination QgsFeatureSink which the proxy will forward features to.
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds a list of features to the sink.
bool addFeatures(QgsFeatureIterator &iterator, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds all features from the specified iterator to the sink.
QList< QgsFeature > QgsFeatureList
Definition: qgsfeature.h:882