/**
* Parses the query and splits it into three query stacks for correct processing order.
*
* @param query used to parse.
*/
private void loadSubqueryPriorityQ(Query query) {
if (!query.isValid()) return; // TODO: throw an exception.
for (String subquery : query.getQuery().split(" ")) {
if (subquery.matches("(?i:r:.*)") || subquery.matches("(?i:p:.*)")) {
highpriorities.push(subquery);
} else if (subquery.matches("(?i:pprice.*)") || subquery.matches("(?i:rdate.*)")) {
lowpriorities.push(subquery);
} else if (subquery.matches("(?i:rscore.*)")) {
rscorepriorities.push(subquery);
} else highpriorities.push(subquery);
}
}
