A feature pool based on a vector data provider. More...

#include <qgsvectordataproviderfeaturepool.h>

Inheritance diagram for QgsVectorDataProviderFeaturePool:

[legend]

Public Member Functions
	QgsVectorDataProviderFeaturePool (QgsVectorLayer *layer, bool selectedOnly=false)
	Creates a new feature pool for the data provider of 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 data provider.

Since: QGIS 3.4

Definition at line 30 of file qgsvectordataproviderfeaturepool.h.

Constructor & Destructor Documentation

◆ QgsVectorDataProviderFeaturePool()

QgsVectorDataProviderFeaturePool::QgsVectorDataProviderFeaturePool	(	QgsVectorLayer *	layer,
		bool	selectedOnly = `false`
	)

Creates a new feature pool for the data provider of layer.

If selectedOnly is set to true, only selected features will be managed by the pool.

Definition at line 21 of file qgsvectordataproviderfeaturepool.cpp.

Member Function Documentation

◆ addFeature()

bool QgsVectorDataProviderFeaturePool::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 51 of file qgsvectordataproviderfeaturepool.cpp.

◆ addFeatures()

bool QgsVectorDataProviderFeaturePool::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 91 of file qgsvectordataproviderfeaturepool.cpp.

◆ deleteFeature()

void QgsVectorDataProviderFeaturePool::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 159 of file qgsvectordataproviderfeaturepool.cpp.

◆ updateFeature()

void QgsVectorDataProviderFeaturePool::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 130 of file qgsvectordataproviderfeaturepool.cpp.

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

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsVectorDataProviderFeaturePool()

Member Function Documentation

◆ addFeature()

◆ addFeatures()

◆ deleteFeature()

◆ updateFeature()