Super Class Datatransform

General
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1

How Superclass data transform will work when we keep different values of same property in parent and child dt with name. How to avoid override of values without when condition.

2

Hi @sateeshp0869,

lData Transforms share the same name (e.g., SetDefaults). Pega climbs up the class hierarchy → executes the top parent Data Transform first. Then moves back down, applying each child class’s Data Transform. Each level can add or override values.

  • Execution happens in sequence:

    1. Pega executes the parent (superclass) Data Transform.

    2. Then it executes the child class Data Transform.

  • If both set values for the same property, the child value overrides the parent value (last one wins).

    How to Avoid Overriding (without using When conditions)

  • Use Separate Properties for Parent & Child

    • Instead of setting the same property, define parent-level default property and then map/merge to child when needed.

  • Use Append and Map to (for Page Lists/Page Groups)

    • If you’re setting on collections, instead of overriding, append new values.