Table of Contents


  1. Preface
  2. Using the Designer
  3. Working with Sources
  4. Working with Flat Files
  5. Working with Targets
  6. Mappings
  7. Mapplets
  8. Mapping Parameters and Variables
  9. Working with User-Defined Functions
  10. Using the Debugger
  11. Viewing Data Lineage
  12. Comparing Objects
  13. Managing Business Components
  14. Creating Cubes and Dimensions
  15. Using the Mapping Wizards
  17. Datatype Reference
  18. Configure the Web Browser

Understanding Mapplet Input and Output

Understanding Mapplet Input and Output

To use a mapplet in a mapping, you must configure it for input and output. In addition to transformation logic that you configure, a mapplet has the following components:
  • Mapplet input.
    You can pass data into a mapplet using source definitions or Input transformations or both. When you use an Input transformation, you connect it to the source pipeline in the mapping.
  • Mapplet output.
    Each mapplet must contain one or more Output transformations to pass data from the mapplet into the mapping.
  • Mapplet ports.
    Mapplet ports display only in the Mapping Designer. Mapplet ports consist of input ports from Input transformations and output ports from Output transformations. If a mapplet uses source definitions rather than Input transformations for input, it does not contain any input ports in the mapping.

Updated June 25, 2018