Something like the following example should doing the job :
${date?date?string("yyyy")}.${date?date?string("MM")}.${date?date?string("dd")}
- yyyy => year on 4 elements (ex: 2012)
- MM => Month on 2 elements (ex: march -> 03)
- dd => Day of the month on 2 elements (ex: 23)
- . => separator you want to separate each fields (ex: - or / or . or smth else)
You should have to check about available format somewhere in the netbeans help (sorry I don't find out informations about this for now).
I see that's a very old post, but if it may usefull for someone ...
regards.
ollie314