Need a way to set a Criteria in order to filter the filterbuilder fields

[d.cavestro]

Hi all,
just wondering if there's a way to set a Criteria in order to filter the fields available for a FilterBuilder.
I have a datasource that brings the fields for several projects, and I would like to show a filter builder for a given (current) project.

FilterBuilder builder = new FilterBuilder ();
builder.setFieldDataSource (ds);
//need something similar to the following pseudo-code
//builder.setFieldDataSourceCriteria (new Criteria ("projectId", 12345));

I took a look at Javadoc and SmartClient docs... did I miss something?

Cheers
Davide

Using
SmartGwt 3.0
SmartClient Version: SC_SNAPSHOT-2011-12-05/LGPL Development Only (built 2011-12-05)