You could always construct a BooleanQuery with all the necessary sub-clauses
on an as-needed basis. You can string the sub-clauses together in
arbitrarily complex ways. Be particularly aware that you one of the clauses
of a BooleanQuery may itself be a boolean query, so constructing something
like 'a and (b or c)' is equivalent to (fast pseudo code with parameters and
lotsa other stuff left out here)
BooleanQuery bqSub;
bqSub.add("b", SHOULD);
bqSub.add("c", SHOULD);
BooleanQuery bqTop;
bq.add(bqSub, MUST);
bq.add("a", MUST);
etc, etc, etc...
Best
Erick
