Java Code help to search released WTParts in certain dates

Hi There,

Can you help me for following using Java code? Or at least tell if its possible or not.

I need to search for WTParts (actually its soft type) that were released in a given date range. I already have a report that lists this, but I am inclinded to use QuerySpec if possible. I am writing a customization that searches for these WTParts and does 'something' with them.

Thanks,

Yogesh