Is there a data type a form editor will detect represents a classpath?

I'm creating a bean which needs to access image and sound resources
within my source tree.  At the moment, the user is typing these values
into a String bean field which the bean then puts into a
getClass().getResource() call to get the resource.  It would be a lot
nicer if rather than having to type in the string, the NetBeans editor
would pop open a browse dialog box that could be used to locate the
resource (similar to what happens when the data type is Icon).  Is
there a special datatype that will give me this functionality?

Mark McKay
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http://www.kitfox.com