Table of Contents

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  1. Preface
  2. Introduction to Transformations
  3. Transformation Ports
  4. Transformation Caches
  5. Address Validator Transformation
  6. Aggregator Transformation
  7. Association Transformation
  8. Bad Record Exception Transformation
  9. Case Converter Transformation
  10. Classifier Transformation
  11. Comparison Transformation
  12. Consolidation Transformation
  13. Data Masking Transformation
  14. Data Processor Transformation
  15. Decision Transformation
  16. Duplicate Record Exception Transformation
  17. Expression Transformation
  18. Filter Transformation
  19. Hierarchical to Relational Transformation
  20. Java Transformation
  21. Java Transformation API Reference
  22. Java Expressions
  23. Joiner Transformation
  24. Key Generator Transformation
  25. Labeler Transformation
  26. Lookup Transformation
  27. Lookup Caches
  28. Dynamic Lookup Cache
  29. Match Transformation
  30. Match Transformations in Field Analysis
  31. Match Transformations in Identity Analysis
  32. Normalizer Transformation
  33. Merge Transformation
  34. Parser Transformation
  35. Python Transformation
  36. Rank Transformation
  37. Read Transformation
  38. Relational to Hierarchical Transformation
  39. REST Web Service Consumer Transformation
  40. Router Transformation
  41. Sequence Generator Transformation
  42. Sorter Transformation
  43. SQL Transformation
  44. Standardizer Transformation
  45. Union Transformation
  46. Update Strategy Transformation
  47. Web Service Consumer Transformation
  48. Parsing Web Service SOAP Messages
  49. Generating Web Service SOAP Messages
  50. Weighted Average Transformation
  51. Window Transformation
  52. Write Transformation
  53. Appendix A: Transformation Delimiters

Developer Transformation Guide

Developer Transformation Guide

Implicit Dependencies

Implicit Dependencies

An implicit dependency is a dependency within a transformation between two ports based on an expression or condition.
You can propagate datatype, precision, scale, and description to ports with implicit dependencies. You can also parse conditions and expressions to identify the implicit dependencies of the propagated port. All ports with implicit dependencies are output or input/output ports.
When you include conditions, the Developer tool updates the following dependencies:
  • Link path dependencies
  • Output ports used in the same lookup condition as the propagated port
  • Associated ports in dynamic Lookup transformations that are associated with the propagated port
  • Master ports used in the same join condition as the detail port
When you include expressions, the Developer tool updates the following dependencies:
  • Link path dependencies
  • Output ports containing an expression that uses the propagated port
The Developer tool does not propagate to implicit dependencies within the same transformation. You must propagate the changed attributes from another transformation. For example, when you change the datatype of a port that is used in a lookup condition and propagate that change from the Lookup transformation, the Developer tool does not propagate the change to the other port dependent on the condition in the same Lookup transformation.

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