In Etlworks, it is possible to configure a preprocessor to transform the raw source message, before it passed to the actual source-to-destination transformation.
Typically, it is used for one of the following purposes:
- Modify the source message.
- Save the source message in a global or flow variable and use it later for any purpose (for example store in a database).
- All of the above
The preprocessor is configured at the format level, so it is required to use a unique connection with each format with a configured preprocessor.