CUBA 7 - Replacement for QueryFilter class

In CUBA 7, I just saw that the QueryFilter is not integrated with the CollectionLoader nor with the Filter classes. I’m using QueryFilter for a custom Filter.
That being said, let’s say I have Filter Condition 1, Filter Condition 2 and Filter Condition 3, each defined in the controller as being a QueryFilter of some sort.

Pre CUBA 7, I would just apply the selected condition’s QueryFilters, but now, that the class is gone, how can I replace this behaviour using the new Data Loading API?

You can replace the old QueryFilter with See DataLoader.setCondition().