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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

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

Member Function Documentation

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

Member Data Documentation

QgsAttributeList QgsVectorLayerFeatureIterator::FetchJoinInfo::attributes

attributes to fetch

int QgsVectorLayerFeatureIterator::FetchJoinInfo::indexOffset

at what position the joined fields start

int QgsVectorLayerFeatureIterator::FetchJoinInfo::joinField

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

const QgsVectorJoinInfo* QgsVectorLayerFeatureIterator::FetchJoinInfo::joinInfo

cannonical source of information about the join

QgsVectorLayer* QgsVectorLayerFeatureIterator::FetchJoinInfo::joinLayer

resolved pointer to the joined layer

int QgsVectorLayerFeatureIterator::FetchJoinInfo::targetField

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


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