Better get our terminology straight here. I'm not certain I understand what you mean by "switch loop" and "ceiling loop."
The two most common methods here are:
1. A junction box in the attic which will take four cables. One for power in, one for power out to the next box, one to the light fixture, one down to the switch. This results in just a single twin+earth cable at the switch (no neutral in the box), and just a single twin+earth at the light fixture.
2. "Loop-in" method. The ceiling rose for the light effectively acts as the junction box as well. One T&E for power in, one T&E continuing to the next light, and one T&E down to the switch. It has the advantage of not needing extra junction boxes wired in the attic (often time-consuming and awkward!), but can be very difficult to replace the pendant fitting with some other types of fixture later.
