I am guessing that Brendan is right. If it has a wooden base like the ones in the vids, and there are no pre-drilled holes in the top, then it's a floating bridge.

If the bass is a 34" scale, you just measure and put the saddle for the G string at 34" and tighten down the strings.

Most of the time there is no problem with this, but you can knock or pull the bridge out of place sometimes. If that happens to you, you could use one of the two approaches here:



(It wouldn't let me add two vids, so watch the next post ;-) )

I suppose you could glue, but you would not want to put any finish down before gluing. I have no idea why they never seem to glue the bridge on a hollow archtop, but I've not seen it. Mostly when there is bridge slippage I have seen folks use pins or double-sticky tape, but that may be because the guitar is already finished.

In any case, if it were me, I'd probably start with the traditional floating, and if it gave me trouble, I'd pin or tape it.