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Map Stream

Synopsis​

This operator performs a map operation (assign the value of the key field to the provided value) on streamed data events in a streaming analytic workflow.

Description​

This is a streaming operator and needs to be placed inside a Streaming Nest or a Streaming Optimization operator. The operator defines the logical functionality and can be used in all streaming analytic workflow for any supported streaming platform (currently Flink and Spark). The actual implementation used depends on the type of connection connected to the Streaming Nest operator in which this operator is placed.

Input​

input stream​

The input of this streaming operation. It needs to receive the output of a preceding streaming operator, to define the flow of data events in the streaming analytic workflow.

Output​

output stream​

The output of this streaming operation. Connect it to the next Streaming operator to define the flow of the data events in the designed streaming analytic workflow.

Parameters​

Key​

Key of the value to be mapped.

Value​

New value for the keyed field.