Class: QgsArrowArrayStream¶

Wrapper around an ArrowArrayStream.

This object provides a helper to allow array streams to be passed to or returned from QGIS functions in C++ or Python. See the documentation for the Arrow C Stream Interface for how to interact with the underlying ArrowArrayStream: https://arrow.apache.org/docs/format/CStreamInterface.html

Added in version 4.0.

List of all members, including inherited members

Methods

`cArrayStreamAddress`	Returns the address of the underlying ArrowArrayStream for import or export across boundaries
`exportToAddress`	Export this array to the address of an empty ArrowArrayStream for export across boundaries
`isValid`	Returns `True` if this wrapper object holds a valid ArrowArray

class qgis.core.QgsArrowArrayStream[source]¶

Bases: object

__init__(): Construct invalid array stream holder

cArrayStreamAddress(self) → int¶

Returns the address of the underlying ArrowArrayStream for import or export across boundaries

Warning

This is intended for advanced usage and may cause a crash if used incorrectly.

Return type:: int

exportToAddress(self, otherAddress: int)[source]¶

Export this array to the address of an empty ArrowArrayStream for export across boundaries

Warning

This is intended for advanced usage and may cause a crash if used incorrectly.

Parameters:: otherAddress (int)

isValid(self) → bool[source]¶

Returns True if this wrapper object holds a valid ArrowArray

Return type:: bool