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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. Macro Transformation
  30. Match Transformation
  31. Match Transformations in Field Analysis
  32. Match Transformations in Identity Analysis
  33. Normalizer Transformation
  34. Merge Transformation
  35. Parser Transformation
  36. Python Transformation
  37. Rank Transformation
  38. Read Transformation
  39. Relational to Hierarchical Transformation
  40. REST Web Service Consumer Transformation
  41. Router Transformation
  42. Sequence Generator Transformation
  43. Sorter Transformation
  44. SQL Transformation
  45. Standardizer Transformation
  46. Union Transformation
  47. Update Strategy Transformation
  48. Web Service Consumer Transformation
  49. Parsing Web Service SOAP Messages
  50. Generating Web Service SOAP Messages
  51. Weighted Average Transformation
  52. Window Transformation
  53. Write Transformation
  54. Appendix A: Transformation Delimiters

Developer Transformation Guide

Developer Transformation Guide

Back Next

Run-time Linking Properties

Run-time Linking Properties

Create and configure a run-time link on the
Run-time Linking
 tab. A run-time link is a group-to-group link between transformations that uses a parameter, a link policy, or both to determine which ports to link at run time. Run-time links appear as thick lines in the mapping editor.
Create and configure run-time links to a Write transformation in the following cases:
  • The target data object in the Write transformation uses a parameter.
  • Ports from the upstream transformation can change at run time.
Do not create a run-time link to a Write transformation when you define the target columns based on the mapping flow.
You can perform the following tasks on the
Run-time Linking
 tab:
Create a run-time link.
In the
Links
 area, click the
New
 button and select the transformation from which you want to link the ports to the Write transformation at run time in the New Link dialog box.
Configure the run-time link properties.
In the
Link Properties
 area, configure the following run-time link properties:
Parameter
Select this option when the port names can change between mapping runs and you know the port name values. Use a parameter of type Input Link Set to connect ports by name values between mapping runs. The syntax for the Input Link Set mapping parameter consists of comma-separated pairs of ports:
Afield1->Bfield2, Afield3->Bfield4
.
Link Policy
Select this option when you want to automatically link ports that have matching names. For example, when both of the mapping objects contain a port called SALARY, the Data Integration Service links them. You can ignore prefixes and suffixes in the port names.
At run time, the Data Integration Service establishes and resolves links between the ports in the following order:
  • Links that you manually create in the mapping editor.
  • Links based on the parameter that you configured for a run-time link.
  • Links based on the link policy that you configured for a run-time link.
For more information on run-time links, see the
Informatica Developer Mapping Guide
.
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