Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Access Policy transformation
  6. Aggregator transformation
  7. B2B transformation
  8. Cleanse transformation
  9. Data Masking transformation
  10. Data Services transformation
  11. Deduplicate transformation
  12. Expression transformation
  13. Filter transformation
  14. Hierarchy Builder transformation
  15. Hierarchy Parser transformation
  16. Hierarchy Processor transformation
  17. Input transformation
  18. Java transformation
  19. Java transformation API reference
  20. Joiner transformation
  21. Labeler transformation
  22. Lookup transformation
  23. Machine Learning transformation
  24. Mapplet transformation
  25. Normalizer transformation
  26. Output transformation
  27. Parse transformation
  28. Python transformation
  29. Rank transformation
  30. Router transformation
  31. Rule Specification transformation
  32. Sequence transformation
  33. Sorter transformation
  34. SQL transformation
  35. Structure Parser transformation
  36. Transaction Control transformation
  37. Union transformation
  38. Velocity transformation
  39. Verifier transformation
  40. Web Services transformation

Transformations

Transformations

Data source conflicts

Data source conflicts

If you convert hierarchical data to hierarchical data and you add multi-level arrays to the output, you must ensure that the data sources for the output group or fields do not conflict. A conflict occurs when you select both an incoming array and one of its descendant arrays to be data sources for the same output group or field.
If you have a data source conflict, the transformation remains invalid until you resolve the conflict. Additionally, you cannot configure joins, filters, order by fields, or group by fields until you resolve the conflict.

Example of a data source conflict

A data source conflict occurs if you select both Array1 and Array2 as data sources for the output group in the following image:
The image shows the Hierarchy Processor tab of the Hierarchy Processor transformation. The Incoming Fields panel contains one input group with the following field: Array1 (array). Array1 contains the following fields: Field1 (string), Field2 (string), and Array2 (array). Array2 contains the following fields: Field3 (string) and Field4 (string). The Output Fields panel contains one output group with the same fields as the input group.
The conflict occurs because there is no way to determine which data source provides the data for Field1 and Field2. In this case, the Hierarchy Processor transformation displays a conflicting data sources error.
To resolve the conflict, remove one of the data sources from the Output group.

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