Not sure on what aspect the extension point will be defined..

I am writing a ruleset to populate the value of "drop down list" characteristics when the specification is selected. In doing so, I am writing a ruleset, custom extension point, ruleset extension point and enable extension point.

The extension point signature is as follows:

public abstract interface oracle.communications.inventory.api.entity.CharacteristicSpecValue oracle.communications.inventory.api.specification.SpecManager.makeCharacteristicSpecValue()

Now, I have doubt in defining the custom-aop.xml file, as to which concrete-aspect it will belong to?

As per developer guide, it can't belong to either SpecBasedAsArgumnt or SpecAsArgument

as neither it define at least one argument that is specification-based nor define at least one