QGIS API Documentation 3.41.0-Master (3440c17df1d)
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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
38class CORE_EXPORT QgsProxyFeatureSink : public QgsFeatureSink
39{
40 public:
41
46 bool addFeature( QgsFeature &feature, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override;
47 bool addFeatures( QgsFeatureList &features, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override;
49 QString lastError() const override;
50 bool flushBuffer() override;
51 void finalize() override;
52
56 QgsFeatureSink *destinationSink() { return mSink; }
57
58 protected:
59
61 QgsFeatureSink *mSink = nullptr;
62};
63
64
65#endif // QGSPROXYFEATURESINK_H
66
67
68
69
Wrapper for iterator of features from vector data provider or vector layer.
An interface for objects which accept features via addFeature(s) methods.
virtual bool flushBuffer()
Flushes any internal buffer which may exist in the sink, causing any buffered features to be added to...
virtual bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
Adds a single feature to the sink.
virtual QString lastError() const
Returns the most recent error encountered by the sink, e.g.
virtual bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())=0
Adds a list of features to the sink.
virtual void finalize()
Finalizes the sink, flushing any buffered features to the destination.
QFlags< Flag > Flags
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
A simple feature sink which proxies feature addition on to another feature sink.
QgsFeatureSink * destinationSink()
Returns the destination QgsFeatureSink which the proxy will forward features to.
QList< QgsFeature > QgsFeatureList