QgsVectorLayerFeatureIterator::FetchJoinInfo Struct Reference

Join information prepared for fast attribute id mapping in QgsVectorLayerJoinBuffer::updateFeatureAttributes(). More...

#include <qgsvectorlayerfeatureiterator.h>

Public Member Functions
void	addJoinedAttributesCached (QgsFeature &f, const QVariant &joinValue) const
void	addJoinedAttributesDirect (QgsFeature &f, const QVariant &joinValue) const

Public Attributes
QgsAttributeList	attributes
	attributes to fetch More...
int	indexOffset
	at what position the joined fields start More...
int	joinField
	index of field (of the joined layer) must have equal value More...
const QgsVectorJoinInfo *	joinInfo
	cannonical source of information about the join More...
QgsVectorLayer *	joinLayer
	resolved pointer to the joined layer More...
int	targetField
	index of field (of this layer) that drives the join More...

Detailed Description

Join information prepared for fast attribute id mapping in QgsVectorLayerJoinBuffer::updateFeatureAttributes().

Created in the select() method of QgsVectorLayerJoinBuffer for the joins that contain fetched attributes

Definition at line 162 of file qgsvectorlayerfeatureiterator.h.

Member Function Documentation

addJoinedAttributesCached()

void QgsVectorLayerFeatureIterator::FetchJoinInfo::addJoinedAttributesCached	(	QgsFeature &	f,
		const QVariant &	joinValue
	)		const

Definition at line 714 of file qgsvectorlayerfeatureiterator.cpp.

addJoinedAttributesDirect()

void QgsVectorLayerFeatureIterator::FetchJoinInfo::addJoinedAttributesDirect	(	QgsFeature &	f,
		const QVariant &	joinValue
	)		const

Definition at line 732 of file qgsvectorlayerfeatureiterator.cpp.

Member Data Documentation

attributes

QgsAttributeList QgsVectorLayerFeatureIterator::FetchJoinInfo::attributes

attributes to fetch

Definition at line 165 of file qgsvectorlayerfeatureiterator.h.

indexOffset

int QgsVectorLayerFeatureIterator::FetchJoinInfo::indexOffset

at what position the joined fields start

Definition at line 166 of file qgsvectorlayerfeatureiterator.h.

joinField

int QgsVectorLayerFeatureIterator::FetchJoinInfo::joinField

index of field (of the joined layer) must have equal value

Definition at line 169 of file qgsvectorlayerfeatureiterator.h.

joinInfo

const QgsVectorJoinInfo* QgsVectorLayerFeatureIterator::FetchJoinInfo::joinInfo

cannonical source of information about the join

Definition at line 164 of file qgsvectorlayerfeatureiterator.h.

joinLayer

QgsVectorLayer* QgsVectorLayerFeatureIterator::FetchJoinInfo::joinLayer

resolved pointer to the joined layer

Definition at line 167 of file qgsvectorlayerfeatureiterator.h.

targetField

int QgsVectorLayerFeatureIterator::FetchJoinInfo::targetField

index of field (of this layer) that drives the join

Definition at line 168 of file qgsvectorlayerfeatureiterator.h.

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The documentation for this struct was generated from the following files:

• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsvectorlayerfeatureiterator.h
• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsvectorlayerfeatureiterator.cpp