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

Creating Java Code Snippets

Creating Java Code Snippets

To create Java code snippets to define transformation behavior, use the
Java Code
window on the
code entry
tab
s
.
  1. Click the appropriate code entry tab.
    The following table describes the tasks that you can complete on the code entry tabs in the
    Java
    view:
    Tab
    Description
    Imports
    Imports third-party, built-in, and custom Java packages for an active or passive Java transformation. After you import packages, you can use them on the other code entry tabs.
    Helpers
    Declares user-defined variables and methods for the Java transformation class in an active or passive Java transformation. After you declare variables and methods, you can use them in any other code entry tab except the
    Imports
    tab.
    On Input
    Defines how an active or passive Java transformation behaves when it receives an input row. The Java code that you define on this tab runs one time for each input row.
    On this tab, you can also access and use input and output port data, variables, and Java transformation API methods.
    At End
    Defines how an active or passive Java transformation behaves after it processes all input data.
    On this tab, you can also set output data for active transformations, and call Java transformation API methods.
    Functions
    Defines functions that invoke expressions in a Java transformation with the Java programming language. For example, you can define a function that invokes an expression that looks up the values of input or output ports or looks up the values of Java transformation variables.
    On the
    Functions
    tab, you can manually define functions or click
    New Function
    to invoke the
    Define Function
    dialog box, which enables you to easily define a function.
    Optimizer Interfaces
    Defines early selection or push-into filter optimization. Select the optimization method in the navigator. Update the code snippets to enable the optimization. Define the input ports and associated output ports to push filter logic through.
    Full Code
    Read-only. On this tab, you can view and compile the full class code for the Java transformation.
  2. To access input or output column variables in the snippet,
    expand the
    Input
    or
    Output
    list in the navigator and double-click the name of the port
    .
  3. To call a Java transformation API in the snippet,
    expand the
    Callable APIs
    list in the navigator and double-click the name of the method. If necessary, configure the appropriate input values for the method
    .
  4. Write appropriate Java code, based on the
    code entry tab type
    .
    View the full class code for the Java transformation in the
    Java code
    window
    on the
    Full Code
    tab
    .

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