Hi all,
It seems to me that the no-loop only prevents a rule from triggering
itself - and doesn't make the rule only fire once (which is what I'm
after)
e.g. consider the following two contrived simple rules:
rule "addPriorityPrefix"
dialect "java"
no-loop true
when
$work : Work (priority >= 200)
then
modify($work) {
setTitle("!!! " + getTitle());
};
end
rule "re-assign low priority tasks"
dialect "java"
no-loop true
when
$work : Work (priority < -200)
then
modify($work) {
setOwner("nobody");
};
end
What I end up with is an infinte loop.
Whilst for the simple case I can re-write them like
$work : Work (priority >= 200, !title.startWith("!!!"))
however with the more complex rules this makes the rules get very
complex quickly and less easy to write. Is there a way to prevent these
loops - have I misunderstood or do you really need to check everything
in the rule that you may set?
How would you do the banking interest example?
rule "interest calculation"
no-loop
when
$account : Account( )
then
modify($account) {
setBalance((long)($account.getBalance() * 1.01) )
};
end
if there was another rule that if you where a gold customer and payed in
> $500 the previous month then you get $4 bonus?
rule "gold bonus"
no-loop
when
$account : Account(type="gold", previousMonthDeposit > 500 )
then
modify($account) {
setBalance((long)($account.getBalance() + 4) )
};
end
Regards,
/James
**************************************************************************************
This message is confidential and intended only for the addressee. If you have
received this message in error, please immediately notify the
[email protected] and delete it from your system as well as any copies. The
content of e-mails as well as traffic data may be monitored by NDS for
employment and security purposes. To protect the environment please do not
print this e-mail unless necessary.
NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX,
United Kingdom. A company registered in England and Wales. Registered no.
3080780. VAT no. GB 603 8808 40-00
**************************************************************************************
_______________________________________________
rules-users mailing list
[email protected]
https://lists.jboss.org/mailman/listinfo/rules-users
