Class: QgsCachedFeatureIterator¶
Delivers features from the cache
Class Hierarchy¶
Base classes¶
Internal feature iterator to be implemented within data providers |
Methods
Close this iterator. |
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Implementation for fetching a feature. |
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We have a local special iterator for FilterFids, no need to run the generic. |
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Rewind to the beginning of the iterator |
- class qgis.core.QgsCachedFeatureIterator[source]¶
Bases:
QgsAbstractFeatureIterator
- __init__(vlCache: QgsVectorLayerCache | None, featureRequest: QgsFeatureRequest)
This constructor creates a feature iterator, that delivers all cached features. No request is made to the backend.
- Parameters:
vlCache (Optional[QgsVectorLayerCache]) – The vector layer cache to use
featureRequest (QgsFeatureRequest) – The feature request to answer
- close(self) bool [source]¶
Close this iterator. No further features will be available.
- Return type:
bool
- Returns:
True
if successful
- fetchFeature(self, f: QgsFeature) bool [source]¶
Implementation for fetching a feature.
- Parameters:
f (QgsFeature) – Will write to this feature
- Return type:
bool
- Returns:
bool
True
if the operation was OK
- nextFeatureFilterFids(self, f: QgsFeature) bool [source]¶
We have a local special iterator for FilterFids, no need to run the generic.
- Parameters:
f (QgsFeature) – Will write to this feature
- Return type:
bool
- Returns:
bool
True
if the operation was OK