Table of Contents

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

Transformations

Transformations

Data source conflicts

Data source conflicts

If you use a Hierarchy Processor transformation to 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 an incoming array and one of its descendant arrays as 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

You add the following Input group to the Output group and preserve the incoming field:
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.
If you select both Array1 and Array2 as data sources for the Output group, there is no way to determine which data source provides the data for Field1 and Field2. In this case,
Data Integration
displays a conflicting data sources error.
To resolve the conflict, remove one of the data sources from the Output group.