QgsVectorJoinInfo Struct Reference

#include <qgsvectorlayer.h>

List of all members.

Public Attributes
QHash< QString, QgsAttributes >	cachedAttributes
	Cache for joined attributes to provide fast lookup (size is 0 if no memory caching)
int	joinFieldIndex
	Join field index in the source layer.
QString	joinFieldName
	Join field in the source layer.
QString	joinLayerId
	Source layer.
bool	memoryCache
	True if the join is cached in virtual memory.
int	targetFieldIndex
	Join field index in the target layer.
QString	targetFieldName
	Join field in the target layer.

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Detailed Description

Note:

added in 1.7

Definition at line 122 of file qgsvectorlayer.h.

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Member Data Documentation

QHash< QString, QgsAttributes> QgsVectorJoinInfo::cachedAttributes

Cache for joined attributes to provide fast lookup (size is 0 if no memory caching)

Note:

not available in python bindings

Definition at line 135 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerFeatureIterator::addJoinedAttributes(), QgsVectorLayerFeatureIterator::FetchJoinInfo::addJoinedAttributesCached(), and QgsVectorLayerJoinBuffer::cacheJoinLayer().

int QgsVectorJoinInfo::joinFieldIndex

Join field index in the source layer.

For backward compatibility with 1.x (x>=7)

Definition at line 140 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerJoinBuffer::cacheJoinLayer(), QgsVectorLayerFeatureIterator::prepareJoins(), and QgsVectorLayerJoinBuffer::readXml().

QString QgsVectorJoinInfo::joinFieldName

Join field in the source layer.

Definition at line 129 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerJoinBuffer::cacheJoinLayer(), QgsVectorLayerFeatureIterator::prepareJoins(), and QgsVectorLayerJoinBuffer::readXml().

QString QgsVectorJoinInfo::joinLayerId

Source layer.

Definition at line 127 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerJoinBuffer::cacheJoinLayer(), QgsVectorLayer::maximumValue(), QgsVectorLayer::minimumValue(), QgsVectorLayerFeatureIterator::prepareJoins(), QgsVectorLayerJoinBuffer::readXml(), and QgsVectorLayer::uniqueValues().

bool QgsVectorJoinInfo::memoryCache

True if the join is cached in virtual memory.

Definition at line 131 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerJoinBuffer::addJoin(), QgsVectorLayerJoinBuffer::cacheJoinLayer(), and QgsVectorLayerJoinBuffer::readXml().

int QgsVectorJoinInfo::targetFieldIndex

Join field index in the target layer.

For backward compatibility with 1.x (x>=7)

Definition at line 138 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerFeatureIterator::prepareJoins(), and QgsVectorLayerJoinBuffer::readXml().

QString QgsVectorJoinInfo::targetFieldName

Join field in the target layer.

Definition at line 125 of file qgsvectorlayer.h.

Referenced by QgsVectorLayerFeatureIterator::prepareJoins(), and QgsVectorLayerJoinBuffer::readXml().

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

• src/core/qgsvectorlayer.h