Restrict objects available in symfony admin generator for all actions

Question

One can change the query that is used for the list action in an admin generator configuration by using the table_method option. For example,

# apps/backend/modules/job/config/generator.yml
config:
  list:
    table_method: retrieveBackendJobList

But I want to restrict all the actions in the admin generator. In particular, I want to restrict all the objects displayed, edited, deleted, etc., to objects that have a particular attribute that may depend on the current day of the week or the time of the day.

I don't want to override the model class because for other apps I want the restriction to be different (or perhaps no restriction at all).

Where (i.e., which file(s)) and how can I make this change?