QgsVectorLayerFeaturePool Class Reference

A feature pool based on a vector layer. More...

#include <qgsvectorlayerfeaturepool.h>

Inheritance diagram for QgsVectorLayerFeaturePool:

Public Member Functions
	QgsVectorLayerFeaturePool (QgsVectorLayer *layer)
	Creates a new feature pool for layer.
bool	addFeature (QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
	Adds a single feature to the sink.
bool	addFeatures (QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
	Adds a list of features to the sink.
void	deleteFeature (QgsFeatureId fid) override
	Removes a feature from this pool.
void	updateFeature (QgsFeature &feature) override
	Updates a feature in this pool.
Public Member Functions inherited from QgsFeaturePool
	QgsFeaturePool (QgsVectorLayer *layer)
	Creates a new feature pool for layer.
virtual	~QgsFeaturePool ()=default
QgsFeatureIds	allFeatureIds () const
	Returns the complete set of feature ids in this pool.
QgsCoordinateReferenceSystem	crs () const
	The coordinate reference system of this layer.
Qgis::GeometryType	geometryType () const
	The geometry type of this layer.
bool	getFeature (QgsFeatureId id, QgsFeature &feature)
	Retrieves the feature with the specified id into feature.
QgsFeatureIds	getFeatures (const QgsFeatureRequest &request, QgsFeedback *feedback=nullptr)
	Gets features for the provided request.
QgsFeatureIds	getIntersects (const QgsRectangle &rect) const
	Gets all feature ids in the bounding box rect.
QgsVectorLayer *	layer () const
	Gets a pointer to the underlying layer.
QString	layerId () const
	The layer id of the layer.
QString	layerName () const
	Returns the name of the layer.
QPointer< QgsVectorLayer >	layerPtr () const
	Gets a QPointer to the underlying layer.
Public Member Functions inherited from QgsFeatureSink
virtual	~QgsFeatureSink ()=default
virtual bool	addFeatures (QgsFeatureIterator &iterator, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
	Adds all features from the specified iterator to the sink.
virtual void	finalize ()
	Finalizes the sink, flushing any buffered features to the destination.
virtual bool	flushBuffer ()
	Flushes any internal buffer which may exist in the sink, causing any buffered features to be added to the sink's destination.
virtual QString	lastError () const
	Returns the most recent error encountered by the sink, e.g.

Additional Inherited Members
Public Types inherited from QgsFeatureSink
enum	Flag { FastInsert = 1 << 1 , RollBackOnErrors = 1 << 2 }
	Flags controlling how features are added to a sink. More...
typedef QFlags< Flag >	Flags
enum	SinkFlag { RegeneratePrimaryKey = 1 << 1 }
	Flags that can be set on a QgsFeatureSink. More...
typedef QFlags< SinkFlag >	SinkFlags
Protected Member Functions inherited from QgsFeaturePool
void	insertFeature (const QgsFeature &feature, bool skipLock=false)
	Inserts a feature into the cache and the spatial index.
bool	isFeatureCached (QgsFeatureId fid)
	Checks if the feature fid is cached.
void	refreshCache (const QgsFeature &feature)
	Changes a feature in the cache and the spatial index.
void	removeFeature (const QgsFeatureId featureId)
	Removes a feature from the cache and the spatial index.
void	setFeatureIds (const QgsFeatureIds &ids)
	Sets all the feature ids governed by this feature pool.

Detailed Description

A feature pool based on a vector layer.

Since

QGIS 3.4

Definition at line 30 of file qgsvectorlayerfeaturepool.h.

Constructor & Destructor Documentation

QgsVectorLayerFeaturePool()

QgsVectorLayerFeaturePool::QgsVectorLayerFeaturePool

(

QgsVectorLayer *

layer

)

Creates a new feature pool for layer.

Definition at line 23 of file qgsvectorlayerfeaturepool.cpp.

Member Function Documentation

addFeature()

bool QgsVectorLayerFeaturePool::addFeature ( QgsFeature &  feature, QgsFeatureSink::Flags  flags = QgsFeatureSink::Flags()  )

overridevirtual

Adds a single feature to the sink.

Feature addition behavior is controlled by the specified flags.

See also

addFeatures()

Returns

true in case of success and false in case of failure

Reimplemented from QgsFeatureSink.

Definition at line 31 of file qgsvectorlayerfeaturepool.cpp.

addFeatures()

bool QgsVectorLayerFeaturePool::addFeatures ( QgsFeatureList &  features, QgsFeatureSink::Flags  flags = QgsFeatureSink::Flags()  )

overridevirtual

Adds a list of features to the sink.

Feature addition behavior is controlled by the specified flags.

See also

addFeature()

Returns

true in case of success and false in case of failure

Implements QgsFeatureSink.

Definition at line 69 of file qgsvectorlayerfeaturepool.cpp.

deleteFeature()

void QgsVectorLayerFeaturePool::deleteFeature ( QgsFeatureId  fid )

overridevirtual

Removes a feature from this pool.

Implementations will remove the feature from the layer or from the data provider.

Warning

This method can safely be called from a different thread vs the object's creation thread or the original layer's thread. The update will be delegated to run in the main thread, and care must be taken to avoid deadlocks if the main thread is busy.

Implements QgsFeaturePool.

Definition at line 124 of file qgsvectorlayerfeaturepool.cpp.

updateFeature()

void QgsVectorLayerFeaturePool::updateFeature ( QgsFeature &  feature )

overridevirtual

Updates a feature in this pool.

Implementations will update the feature on the layer or on the data provider.

Warning

This method can safely be called from a different thread vs the object's creation thread or the original layer's thread. The update will be delegated to run in the main thread, and care must be taken to avoid deadlocks if the main thread is busy.

Implements QgsFeaturePool.

Definition at line 110 of file qgsvectorlayerfeaturepool.cpp.

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

• /build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/analysis/vector/geometry_checker/qgsvectorlayerfeaturepool.h
• /build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/analysis/vector/geometry_checker/qgsvectorlayerfeaturepool.cpp