QgsVectorLayerFeatureSource Class Reference

Partial snapshot of vector layer's state (only the members necessary for access to features) More...

#include <qgsvectorlayerfeatureiterator.h>

Inheritance diagram for QgsVectorLayerFeatureSource:

Public Member Functions
	QgsVectorLayerFeatureSource (const QgsVectorLayer *layer)
	Constructor for QgsVectorLayerFeatureSource. More...
	~QgsVectorLayerFeatureSource () override
QgsCoordinateReferenceSystem	crs () const
	Returns the coordinate reference system for features retrieved from this source. More...
QgsFields	fields () const
	Returns the fields that will be available for features that are retrieved from this source. More...
QgsFeatureIterator	getFeatures (const QgsFeatureRequest &request=QgsFeatureRequest()) override
	Gets an iterator for features matching the specified request. More...
QString	id () const
	Returns the layer id of the source layer. More...
Public Member Functions inherited from QgsAbstractFeatureSource
virtual	~QgsAbstractFeatureSource ()

Protected Attributes
QList< QgsField >	mAddedAttributes
QgsFeatureMap	mAddedFeatures
QgsChangedAttributesMap	mChangedAttributeValues
QgsGeometryMap	mChangedGeometries
QgsCoordinateReferenceSystem	mCrs
QgsAttributeList	mDeletedAttributeIds
QgsFeatureIds	mDeletedFeatureIds
QgsExpressionFieldBuffer *	mExpressionFieldBuffer = nullptr
QgsFields	mFields
bool	mHasEditBuffer
QString	mId
QgsVectorLayerJoinBuffer *	mJoinBuffer = nullptr
QgsExpressionContextScope	mLayerScope
QgsAbstractFeatureSource *	mProviderFeatureSource = nullptr
Protected Attributes inherited from QgsAbstractFeatureSource
QSet< QgsAbstractFeatureIterator *>	mActiveIterators

Friends
class	QgsVectorLayerFeatureIterator

Additional Inherited Members
Protected Member Functions inherited from QgsAbstractFeatureSource
void	iteratorClosed (QgsAbstractFeatureIterator *it)
void	iteratorOpened (QgsAbstractFeatureIterator *it)

Detailed Description

Partial snapshot of vector layer's state (only the members necessary for access to features)

Definition at line 51 of file qgsvectorlayerfeatureiterator.h.

Constructor & Destructor Documentation

QgsVectorLayerFeatureSource()

QgsVectorLayerFeatureSource::QgsVectorLayerFeatureSource ( const QgsVectorLayer *  layer )

explicit

Constructor for QgsVectorLayerFeatureSource.

Parameters

layer

source layer

Definition at line 31 of file qgsvectorlayerfeatureiterator.cpp.

~QgsVectorLayerFeatureSource()

QgsVectorLayerFeatureSource::~QgsVectorLayerFeatureSource ( )

override

Definition at line 89 of file qgsvectorlayerfeatureiterator.cpp.

Member Function Documentation

crs()

QgsCoordinateReferenceSystem QgsVectorLayerFeatureSource::crs

(

)

const

Returns the coordinate reference system for features retrieved from this source.

Since

QGIS 3.0

Definition at line 107 of file qgsvectorlayerfeatureiterator.cpp.

fields()

QgsFields QgsVectorLayerFeatureSource::fields

(

)

const

Returns the fields that will be available for features that are retrieved from this source.

Since

QGIS 3.0

Definition at line 102 of file qgsvectorlayerfeatureiterator.cpp.

getFeatures()

QgsFeatureIterator QgsVectorLayerFeatureSource::getFeatures ( const QgsFeatureRequest &  request = QgsFeatureRequest() )

overridevirtual

Gets an iterator for features matching the specified request.

Parameters

request

The request

Returns

A feature iterator

Implements QgsAbstractFeatureSource.

Definition at line 96 of file qgsvectorlayerfeatureiterator.cpp.

id()

QString QgsVectorLayerFeatureSource::id

(

)

const

Returns the layer id of the source layer.

Since

QGIS 3.4

Definition at line 112 of file qgsvectorlayerfeatureiterator.cpp.

Friends And Related Function Documentation

QgsVectorLayerFeatureIterator

friend class QgsVectorLayerFeatureIterator

friend

Definition at line 65 of file qgsvectorlayerfeatureiterator.h.

Member Data Documentation

mAddedAttributes

QList<QgsField> QgsVectorLayerFeatureSource::mAddedAttributes

protected

Definition at line 110 of file qgsvectorlayerfeatureiterator.h.

mAddedFeatures

QgsFeatureMap QgsVectorLayerFeatureSource::mAddedFeatures

protected

Definition at line 107 of file qgsvectorlayerfeatureiterator.h.

mChangedAttributeValues

QgsChangedAttributesMap QgsVectorLayerFeatureSource::mChangedAttributeValues

protected

Definition at line 111 of file qgsvectorlayerfeatureiterator.h.

mChangedGeometries

QgsGeometryMap QgsVectorLayerFeatureSource::mChangedGeometries

protected

Definition at line 108 of file qgsvectorlayerfeatureiterator.h.

mCrs

QgsCoordinateReferenceSystem QgsVectorLayerFeatureSource::mCrs

protected

Definition at line 114 of file qgsvectorlayerfeatureiterator.h.

mDeletedAttributeIds

QgsAttributeList QgsVectorLayerFeatureSource::mDeletedAttributeIds

protected

Definition at line 112 of file qgsvectorlayerfeatureiterator.h.

mDeletedFeatureIds

QgsFeatureIds QgsVectorLayerFeatureSource::mDeletedFeatureIds

protected

Definition at line 109 of file qgsvectorlayerfeatureiterator.h.

mExpressionFieldBuffer

QgsExpressionFieldBuffer* QgsVectorLayerFeatureSource::mExpressionFieldBuffer = nullptr

protected

Definition at line 94 of file qgsvectorlayerfeatureiterator.h.

mFields

QgsFields QgsVectorLayerFeatureSource::mFields

protected

Definition at line 96 of file qgsvectorlayerfeatureiterator.h.

mHasEditBuffer

bool QgsVectorLayerFeatureSource::mHasEditBuffer

protected

Definition at line 102 of file qgsvectorlayerfeatureiterator.h.

mId

QString QgsVectorLayerFeatureSource::mId

protected

Definition at line 98 of file qgsvectorlayerfeatureiterator.h.

mJoinBuffer

QgsVectorLayerJoinBuffer* QgsVectorLayerFeatureSource::mJoinBuffer = nullptr

protected

Definition at line 92 of file qgsvectorlayerfeatureiterator.h.

mLayerScope

QgsExpressionContextScope QgsVectorLayerFeatureSource::mLayerScope

protected

Definition at line 100 of file qgsvectorlayerfeatureiterator.h.

mProviderFeatureSource

QgsAbstractFeatureSource* QgsVectorLayerFeatureSource::mProviderFeatureSource = nullptr

protected

Definition at line 90 of file qgsvectorlayerfeatureiterator.h.

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

• /build/qgis-3.10.0+15buster/src/core/qgsvectorlayerfeatureiterator.h
• /build/qgis-3.10.0+15buster/src/core/qgsvectorlayerfeatureiterator.cpp