[SR-Dev] Usrloc, Databases, and Caching

Heisann, I know everyone is busy getting this project off the ground, but I think it might be worthwhile discussing the future on the side and anyway, this regards the database API which sort of is currently being nailed down. Since we were talking about it internally, I was thinking a bit about the future of usrloc. It has this thing where it caches entries in memory. Now, technically usrloc is just a database (or maybe a database on top of a database). Wouldn't it make sense to get rid of it and instead implement a database module that caches and then simplify the registrar module to use database queries directly? This has the benefit that other modules can suddenly use caching, too, if they want. In SER, the domain module for instance already does some caching, so there is some code replication. I believe the database API to be simple enough to provide caching especially since the new model with pre-registered queries allows the cache to be set up with those queries in mind. Regards, Martin