Massi,
Why do you want to use a ruleflow? If you simply remove the ruleflow-group
statements from your rule definitions, you will get your expected behaviour, as
rule_ab will execute first, updating your user fact, which will then trigger
rule_ba to execute, updating the user fact again, which will trigger rule_ba
again, etc.
I'm not sure where you see any parallelism here, as it is always the first
rule, then the second, then the first one again, etc.
But if you really want to know, you can create a loop in a ruleflow by putting
whatever you would like to see repeated in between an XOR-join in front and an
XOR-split at the end, and linking one of the outgoing connections of the
XOR-split back to the first join :)
Kris
----- Original Message -----
From: mmquelo massi
To: Rules Users List
Sent: Thursday, November 22, 2007 5:15 PM
Subject: [rules-users] How to make a "Loop-Ruleflow"????
Hi everybody.
I am trying to make a ruleflow that, once processed, causes the rule engine
to infinitely loop.
I have got a User Object in my object model. It has got a getLogin() and
setLogin() methods.
The login field stands for the "User name", so it is a String.
First I insert an Object in the WM, with login==A.
Then I generate the following rule-flow-groups:
rule "rule_ab"
ruleflow-group "ab"
when
u:User( login == "A" )
then
u.setLogin("B");
System.out.println("a - > b");
update(u);
end
rule "rule_ba"
ruleflow-group "ba"
when
u:User( login == "B" )
then
u.setLogin("A");
System.out.println("b - > a");
update(u);
end
I'd like to define a ruleflow that gives me in output something like this:
a - > b
b - > a
a - > b
b - > a
a - > b
b - > a
a - > b
b - > a
a - > b
b - > a
a - > b
b - > a
.... looping...
How can I do it?
In other words I want those rules to be executed in parallel and I want to
define
this "parallelism" using the ruleflow graph, Is It Possible???
Thank You Again!
Massi.
P.S.
Ah.... I solved that matter with the rule.package...
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