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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

Port Selector Configuration

Port Selector Configuration

When you configure a port selector, you define selection rules to determine which generated ports to include. The selection rules are similar to the input rules that you can configure for dynamic ports.
A port selector can include static or generated ports. Configure a port selector on the
Port Selector
tab.
The following image shows the
Port Selector
tab:
Configure the following properties for a port selector:
Name
Identifies the port selector. You can create multiple port selectors in a transformation and reference them in expressions.
Scope
Identifies a group of ports that the port selector applies to. You must choose the scope when you create a port selector for a Joiner or a Lookup transformation. These transformations have multiple input groups. The Joiner transformation has a Master or a Detail scope. The Lookup transformation has an Import or a Lookup scope. The Expression transformation has one input group. The scope is always All Ports.
Selection Rules
Determines the ports to include in the port selector. When you create the selection rules, the
Port Preview
panel shows the ports that qualify from the current input ports. These ports might change. Configure the selection rules to accommodate ports from different sources.

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