In my last post on the topic, I showed how we can define a simple computation during the indexing process. That was easy enough, for sure, but it turns out that there are quite a few use cases for this feature that go quite far from what you would expect. For example, we can use this feature as part of defining and working with business rules in our domain.
For example, let’s say that we have some logic that determines whatever a product is offered with a warranty (and for how long that warranty is valid). This is an important piece of information, obviously, but it is the kind of thing that changes on a fairly regular basis. For example, consider the following feature description: