/**
* Stores in the graph which properties in the query the user considers optional.
*
* @param user User ID
* @param checks Boolean[], specifies whether optional checkboxes are checked
* @return Number of objects in the archive that match the query
*/
public Integer sendOptionalInfo(String user, Boolean[] checks) {
if (!userMap.containsKey(user)) return null;
LiberSession session = userMap.get(user);
synchronized (session) {
session.setLastUpdated();
return session.sendOptionalInfo(checks);
}
}
