Stringify Field Stream

Synopsis

This operator performs a stringify operation on the value of the specified fields of streamed data events in a streaming analytic workflow.

Description

The value of the specified keys are parsed to strings.

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

Keys

Specify which keys shall be stringified in the data events.