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

isNull

isNull

Checks the value of an input column for a null value. Use isNull to check if data of an input column is NULL before using the column as a value.
Use isNull in the On Input Row section of the Java editor.
Use the following syntax:
Boolean isNull(String satrColName);
Argument
Data Type
Input/Output
Description
strColName
String
Input
Name of an input column.
Use the following Java code to check the value of the SALARY input column before adding it to the output field TOTAL_SALARIES:
// If value of SALARY is not null if (!isNull("SALARY")) {      // Add to TOTAL_SALARIES.      TOTAL_SALARIES += SALARY; }
or
// If value of SALARY is not null String strColName = "SALARY"; if (!isNull(strColName)) {      // Add to TOTAL_SALARIES.      TOTAL_SALARIES += SALARY; }