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

Defining helper code

Defining helper code

You can declare user-defined variables and methods for the Java transformation class in active or passive Java transformations. Define helper code in the Helper Code section of the Java editor.
After you declare variables and methods in the Helper Code area, you can use them in any code entry area except the Import Packages area.
You can declare the following types of code, variables, and methods:
Static code and static variables
Within a static block, you can declare static variables and static code. Static code runs before any other code in a Java transformation.
For example, the following code declares a static variable to store the error threshold for a Java transformation:
static int errorThreshold;
User-defined static or instance methods
These methods extend the functionality of the Java transformation. Java methods that you declare in the Helper Code section can use or modify output variables. You cannot access input variables from Java methods in the Helper Code section.
For example, use the following code in the Helper Code section to declare a function that adds two integers:
private int myTXAdd (int num1,int num2) {      return num1+num2; }