Subgroup: Cached

Class: QgsCachedFeatureWriterIterator¶

class qgis.core.QgsCachedFeatureWriterIterator¶

Bases: qgis._core.QgsAbstractFeatureIterator

Uses another iterator as backend and writes features to the cache

Methods

close Close this iterator.

compileStatus Returns the status of expression compilation for filter expression requests.

deref

fetchFeature Implementation for fetching a feature.

filterRectToSourceCrs

geometryToDestinationCrs

isValid Returns if this iterator is valid.

nextFeature fetch next feature, return true on success

nextFeatureFilterExpression

nextFeatureFilterFids

prepareSimplification

ref

rewind Rewind to the beginning of the iterator

Attributes

Compiled

NoCompilation

PartiallyCompiled

close(self) → bool¶

Close this iterator. No further features will be available.

Returns:	true if successful

deref()¶

fetchFeature(self, f: QgsFeature) → bool¶

Implementation for fetching a feature.

Parameters:	f – Will write to this feature
Returns:	bool true if the operation was OK

See also

bool()

filterRectToSourceCrs()¶

geometryToDestinationCrs()¶

nextFeatureFilterExpression()¶

nextFeatureFilterFids()¶

prepareSimplification()¶

ref()¶

rewind(self) → bool¶

Rewind to the beginning of the iterator

Returns:	bool true if the operation was OK