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 a Dynamic Expression

Creating a Dynamic Expression

Create a dynamic expression in an Expression transformation to run the expression one time for each port in a dynamic port or a port selector. The dynamic expression returns the results to a separate generated port for each instance.
  1. In the Expression transformation, go to the
    Properties
    view and click the
    Ports
    tab.
  2. Click
    New Dynamic Port
    .
    The Developer tool creates a dynamic port with default properties.
  3. Rename the dynamic port and disable the input option.
    The dynamic port must be an output port.
  4. In the
    Expression
    column for the dynamic output port, click the
    Open
    button ( "" 
				).
    The
    Dynamic Expression
    dialog box appears:
  5. In the Expression editor, enter an expression. The expression can include a port selector or a dynamic port.
    For example,
    LTRIM(RTRIM(Dynamic_Customer))
    , where Dynamic_Customer is a dynamic port.
  6. Click
    Validate
    to validate the expression.
  7. Click
    OK
    to exit the
    Validate Expression
    dialog box.
  8. In the
    Output Port Settings
    area, select the dynamic output port from the
    Base Port
    list or choose a port selector that you referenced in the expression.
    The Developer tool generates output ports based on what you select.
  9. Use the following steps to rename the output ports:
    1. Click
      Edit Output Port Settings
      .
      The
      Output Port Settings
      dialog box appears.
    2. In the
      Name
      list, select one of the options and enter a value for the prefix or suffix. If you selected
      Fixed string + Auto-number
      , enter the text for output port name. For example, if you enter TRIM for the output port name, the output port names appear as TRIM1, TRIM2, TRIM3.
    3. Optionally, choose
      Specify settings
      in the
      Other Settings
      area to change the type, precision, and scale for the output ports. By default, the output ports use the settings of the base ports.
    4. Click
      OK
      .
  10. Click
    OK
    to exit the
    Dynamic Expression
    editor.

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