// translate subquery_root_id = LHS_of_memberof
EJBQLEquals equals = new EJBQLEquals(-1);
EJBQLIdentificationVariable identifier = new EJBQLIdentificationVariable(-1);
identifier.setText(subqueryId);
equals.jjtAddChild(identifier, 0);
equals.jjtAddChild((Node) expression.getChild(0), 1);
equals.visit(this);
context.append(")");