How to create a Collection validator using accessor?

I'm learning to ADF

I created a validator of collection on a parent entity object (the object of child entity and the association are created equally), but when I tried to choose a list accessor appears empty

Where can I get this accessor?

Note: I'm connecting as HR, the parent entity object's departments and the child we're AJCTC

Thank you

Take a look at:

Antonis Antoniou blog: using integrated declarative rules of ADF BC (part 1 of 10): Collection Validator

"The validator to the collection requires an 'association of composition'. I'll use the default binding created by "components business of tables" named "EmpDeptFkAssoc" to mark as a composite association.

Then open the "EmpDeptFkAssoc" association, select the "Links" tab and in the "Behavior" section, check the box "Association of Composition".

Tags: Java

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