opendap/src/main/java/opendap/servers/ClauseFactory.java
public TopLevelClause newRelOpClause(int operator,
                                         SubClause lhs,
                                         List rhs)
            throws DAP2ServerSideException {

        return new RelOpClause(operator,
                lhs,
                rhs);
    }
public TopLevelClause newRelOpClause(int operator,
                                         SubClause lhs,
                                         List rhs)
            throws DAP2ServerSideException {

        return new RelOpClause(operator,
                lhs,
                rhs);
    }
Generates a clause which which compares subclauses, using one of the
relative operators supported by the Operator class.