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
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