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  1. Preface
  2. Mappings
  3. Mapplets
  4. Mapping Parameters
  5. Where to Assign Parameters
  6. Mapping Outputs
  7. Generate a Mapping from an SQL Query
  8. Dynamic Mappings
  9. How to Develop and Run a Dynamic Mapping
  10. Dynamic Mapping Use Cases
  11. Mapping Administration
  12. Export to PowerCenter
  13. Import From PowerCenter
  14. Performance Tuning
  15. Pushdown Optimization
  16. Partitioned Mappings
  17. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

Parameter Instance Values in Mapplets

Parameter Instance Values in Mapplets

When you add a reusable transformation with transformation parameters to a mapplet, you can set the instance value for each parameter. The instance value of the parameter is the parameter value in a specific mapplet.
After you add the transformation to a mapplet, set the instance value on the transformation
Parameters
tab.
Choose one of the following options for the
Instance Value
:
Expose as mapplet parameter
Create a mapplet parameter with the same attributes as the transformation parameter. Bind the mapping parameter to the transformation parameter in the same step.
Parameter
Bind a mapplet parameter to the transformation parameter. You can browse for and select a mapplet parameter to bind to the transformation parameter. You can also create a mapplet parameter and bind that parameter to the transformation parameter. When you create a mapplet parameter and bind it, you are performing the same task as the
Expose As Mapplet Parameter
option. However, when you manually create the mapplet parameter, you can configure a different name than the transformation parameter and you can set a different default value.
Use default
Use the default value from the transformation parameter. Skip binding a mapplet parameter to the transformation parameter.
Value
Enter a different default parameter value to use in the mapplet. Skip binding a mapplet parameter to the transformation parameter.

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