pyflink.datastream.stream_execution_environment.StreamExecutionEnvironment.add_source

StreamExecutionEnvironment.add_source(source_func: SourceFunction, source_name: str = 'Custom Source', type_info: TypeInformation | None = None) → DataStream

Adds a data source to the streaming topology.

Parameters:

• source_func – the user defined function.

• source_name – name of the data source. Optional.

• type_info – type of the returned stream. Optional.

Returns:

the data stream constructed.