Z-wave locks require the Security Command Class. There is some experimental support for it (see here) but it is not yet part of the main baseline and based on that thread they can be a little flakey when joining.
It will be added to the binding at some point in the near future but chris is stretched pretty thin I suspect so couldn’t begin to guess when.
The way people a lot of people include locks like this right now is though another hub, such as Vera and then integrating that hub with OH.
Personally, I have a couple of locks like these. It is pretty easy to create new codes for it and they automatically lock after 30 seconds. That coupled with door sensors means I know that if the door is closed I know it is locked. When I have house guests I can create a new code and then get rid of that code when they no longer need it. So far I’ve never encountered a situation where I wish I had the ability to unlock the door remotely so if I ever do include mine into the zwave network it will be strictly to get battery levels.
Based on some recent publications in the computer security press, I would recommend staying far far away from bluetooth and wifi enabled locks. These are currently incredibly insecure as implemented.