Uses another iterator as backend and writes features to the cache. More...

Inheritance diagram for QgsCachedFeatureWriterIterator:

Public Member Functions
	QgsCachedFeatureWriterIterator (QgsVectorLayerCache *vlCache, QgsFeatureRequest featureRequest)
	This constructor creates a feature iterator, which queries the backend and caches retrieved features.
virtual bool	close () override
	Close this iterator.
virtual bool	rewind () override
	Rewind to the beginning of the iterator.
Public Member Functions inherited from QgsAbstractFeatureIterator
	QgsAbstractFeatureIterator (const QgsFeatureRequest &request)
	base class constructor - stores the iteration parameters
virtual	~QgsAbstractFeatureIterator ()
	destructor makes sure that the iterator is closed properly
virtual bool	nextFeature (QgsFeature &f)
	fetch next feature, return true on success

Protected Member Functions
virtual bool	fetchFeature (QgsFeature &f) override
	Implementation for fetching a feature.
Protected Member Functions inherited from QgsAbstractFeatureIterator
void	deref ()
	remove reference, delete if refs == 0
virtual bool	nextFeatureFilterExpression (QgsFeature &f)
	By default, the iterator will fetch all features and check if the feature matches the expression.
virtual bool	nextFeatureFilterFids (QgsFeature &f)
	By default, the iterator will fetch all features and check if the id is in the request.
virtual bool	prepareSimplification (const QgsSimplifyMethod &simplifyMethod)
	Setup the simplification of geometries to fetch using the specified simplify method.
void	ref ()
	add reference

Additional Inherited Members
Protected Attributes inherited from QgsAbstractFeatureIterator
bool	mClosed
	Set to true, as soon as the iterator is closed.
QgsFeatureRequest	mRequest
	A copy of the feature request.
int	refs
	reference counting (to allow seamless copying of QgsFeatureIterator instances)