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Validating against the schema
The tSchemaComplianceCheck is a very useful component for ensuring that the data passing downstream is correct with respect to the defined schema.
This simple exercise demonstrates how rows can be rejected using this component.
Getting ready
Open the job jo_cook_ch03_0020_schemaCompliance.
How to do it…
- Run the job. You should see two rows being rejected.
- Add a
tSchemaComplianceCheckand twotLogRow, right click ontSchemaComplianceCheck_1and select Row then Rejects. Join the flow one of the new tLogRow. Connect the main to the other as shown:
- Now, when you run the job, you will see an additional reject row being output from the
tSchemaComplianceCheckcomponent.
How it works…
The tFileInputDelimited component will detect only some of the anomalies within the data, whereas the tSchemaComplianceCheck component will perform a much more thorough validation of the data.
If you look at the output, you will see the log entry, which shows that the name field has exceeded the maximum for the schema:
