What is the best way to generate a unique and short file name in Java

Question

I don\'t necessarily want to use UUIDs since they are fairly long.

The file just needs to be unique within its directory.

One thought which comes to mind is

Answer 1

If you have access to a database, you can create and use a sequence in the file name.

select mySequence.nextval from dual;

It will be guaranteed to be unique and shouldn't get too large (unless you are pumping out a ton of files).