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

Helper code

Helper code

Declare user-defined variables and methods for the Java transformation in the Helper Code section.
The Helper Code section defines the following variables that are used by the Java code in the On Input Row section:
Variable
Description
empMap
Map object that stores the identification number and employee name from the source.
lock
Lock object used to synchronize the access to empMap across partitions.
generateRow
Boolean variable used to determine whether an output row should be generated for the current input row.
isRoot
Boolean variable used to determine whether an employee is at the top of the company organizational chart (root).
Enter the following code in the Helper Code section:
// Static Map object to store the ID and name relationship of an employee. // If a session uses multiple partitions, empMap is shared across all partitions. private static Map <Integer, String> empMap = new HashMap <Integer, String> (); // Static lock object to synchronize the access to empMap across partitions. private static Object lock = new Object(); // Boolean to track whether to generate an output row based on validity of the // input data. private boolean generateRow; // Boolean to track whether the employee is root. private boolean isRoot;
Data Integration
adds the import statements to the Java code for the transformation.