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

Using high precision

Using high precision

You can configure how the Java transformation handles high precision for decimal data types. To enable high precision, use the
Enable High Precision
option on the
Advanced
tab.
By default, the Java transformation converts fields of type decimal to double data types with a precision of 15. If you want to process a decimal data type with a precision greater than 15, enable high precision to process decimal fields with the Java class BigDecimal.
When you enable high precision, you can process decimal fields with precision less than 28 as BigDecimal. The Java transformation converts decimal data with a precision greater than 28 to the double data type.
For example, a Java transformation has an input field of type decimal that receives a value of 40012030304957666903. If you enable high precision, the value of the field is treated as it appears. If you do not enable high precision, the value of the field is 4.00120303049577 x 10^19.

High precision in an
elastic mapping

To run a
mapping
task successfully, the Java transformation and the
elastic mapping
must use the same precision mode. The Java transformation always uses high precision, but the mapping uses either high or low precision based on the types of hierarchical fields in the mapping.
If the mapping has hierarchical fields that contain child fields with decimal data types, the mapping runs using low precision. If the same mapping contains a Java transformation with a decimal field, the
mapping
task fails.