Class: QgsCachedFeatureWriterIterator¶

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

Class Hierarchy¶

Internal feature iterator to be implemented within data providers.

Abstract Methods

`close`	Close this iterator.
`fetchFeature`	Implementation for fetching a feature.
`rewind`	Rewind to the beginning of the iterator

class qgis.core.QgsCachedFeatureWriterIterator[source]¶

__init__(vlCache: QgsVectorLayerCache | None, featureRequest: QgsFeatureRequest)

This constructor creates a feature iterator, which queries the backend and caches retrieved features.

Parameters:

abstract close(self) → bool[source]¶

Close this iterator. No further features will be available.

abstract fetchFeature(self, f: QgsFeature) → bool[source]¶

Implementation for fetching a feature.

abstract rewind(self) → bool[source]¶

Rewind to the beginning of the iterator