Re: [rules-users] Different results with same fact base
Hi.
I localized the problem. The following lines lead to the described behavior:
/for (Translog tr : translog) {
if (tr.getTransType() == 1 && !(tr.getUserID().compareTo("null") == 0))
{
FactHandle tr_insert = ksession.insert(tr);
ksession.fireAllRules();
ksession.retract(tr_insert);
}
}/
If I run the program with the changed lines
/for (Translog tr : translog) {
if (tr.getTransType() == 1 && !(tr.getUserID().compareTo("null") == 0))
{
ksession.insert(tr);
}
}
ksession.fireAllRules();/
it doesn't work as I expect it. I didn't change the according rule
/rule "filter products with category and brand for slot 1"
salience 20
activation-group "productfilter slot 1"
when
Translog($pid : itemID, $uid : userID)
Product(pid == $pid, brand != "", $price : netUnitPrice,
$brand : brand)
ProductCategory(pid == $pid, $cid : cid, $root : root)
Category(cid == $cid, $cname : cname)
FilterCriteria(categories_slot1 contains $root)
FilterCriteria(brands contains $brand)
not Recommendation(pid == $pid, slot == 1, uid == $uid)
then
insert(new Recommendation($pid, $price, $brand, $cname, $cid, (byte)1,
$root, $uid));
end/
In the end I show all Recommendation-facts in the console using a query.
There should be at least 4, grouped by uid (userid). But with the corrected
lines I only get one Recommendation-fact.
/query "recomm for slot 1"
$recomm_max : Recommendation(slot == 1, $recomm_value : recommValue, $uid :
uid)
not Recommendation(slot == 1, recommValue > $recomm_value, uid == $uid)
end/
The same applies for the query, without grouping by uid:
/query "recomm for slot 1"
$recomm_max : Recommendation(slot == 1)
end/
I chose the first (wrong) solution, with retracting the Translog-facts
directly after firing, because it is transaction data. For my test there are
only a few lines, but in the productive scenario there are at least 100.000
records to insert.
Regards...
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