retrieve
Retrieves a stream (Flow) of all CartographicBoundary objects from the data source. This Flow will emit updates whenever a new cartographic boundary is created or an existing one is updated.
Return
a Flow of CartographicBoundary objects.
Retrieves a stream (Flow) of CartographicBoundary objects associated with a specific Region. The Flow might emit null if no cartographic boundary is found for the provided region.
Return
a Flow of CartographicBoundary objects (nullable).
Parameters
region
the Region used to filter the boundaries.