Best approach to Intersect results with big Set?

[Ryan McKinley]

I have an application where I need to return all results that are not
in a Set<String>  (the Set is managed from hazelcast... but that is
not relevant)

As a fist approach, i have a SerachComponent that injects a BooleanQuery:

      BooleanQuery bq = new BooleanQuery(true);
      for( String id : ids) {
        bq.add(new BooleanClause(new TermQuery(new
Term("id",id)),Occur.MUST_NOT));
      }

This works, but i'm concerned about how many terms we could end up
with as the size grows.

Another possibility could be a Filter that iterates though FieldCache
and checks if each value is in the Set<String>

Any thoughts/directions on things to look at?

thanks
ryan