Developer Mapping Guide

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- 10.2.2
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Developing and Running Dynamic Mappings

Develop a dynamic mapping to manage changes to source metadata and to reuse the data integration logic for different sources and targets. Run the dynamic mapping for same or different sources and targets that might have metadata changes.

The following table lists the high-level tasks to develop and run a dynamic mapping. The tasks and the order in which you perform the tasks depend on the mapping scenario and the transformations that you plan to use in the mapping.

Task	Reference
Create a mapping and add mapping objects.	Creating a Mapping Adding Objects to a Mapping
Configure dynamic sources for the Read or Lookup transformations to get metadata changes from flat file or relational sources at run time.	Configuring a Dynamic Source
Create dynamic ports in transformations and link ports.	Creating a Dynamic Port
Define input rules for dynamic ports to determine which generated ports to create. Define input rules to include or exclude ports. Rename the generated ports. Optionally, reorder generated ports.	Configuring Dynamic Ports Using Input Rules
Configure the transformations.	Refer to the Informatica Developer Transformation Guide for details to configure transformations in the mapping.
Optionally, create port selectors to use in the transformation logic of Joiner, Lookup, or Expression transformations.	Creating a Port Selector
Optionally, create dynamic expressions to use in Expression transformations.	Creating a Dynamic Expression
Configure Write transformations to write to dynamic targets as follows: Define column definitions from an associated data object and get metadata changes from the target file or define columns definitions from the mapping flow of the upstream transformation. Select a target schema strategy for the Write transformations that represent relational and Hive targets.	Configuring a Dynamic Target
Create and configure a run-time link to determine which ports to link at run time.	Creating and Configuring a Run-time Link
After you determine where you want to use parameters in the mapping, create and assign parameters. Configure sources as parameters Configure targets as parameters Configure transformation properties as parameters	How to Configure Parameters
Validate the mapping.	Validating a Dynamic Mapping
Validate synchronized data sources and targets in the dynamic mapping.	Validating Dynamic Sources and Targets
Compile and run the dynamic mapping.	Running a Dynamic Mapping

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Developer Mapping Guide

Developer Mapping Guide

Developing and Running Dynamic Mappings

Developing and Running Dynamic Mappings