A developer is using a Sling Model to apply some business logic to the values stored in the JCR before outputting them to the page, and all injected fields are optional for this model.What is the proper way to apply this behavior on the class level?
A team is designing a promotional landing page that includes a reusable banner, call-to-action buttons, and a product carousel. The design should be consistent across different marketing campaigns. Which AEM feature would be most effective for this purpose?