[rules-users] reuse a rule already fired

[ch4nd4n]

Edson Tirelli-3 wrote:
> 
>    Ck,
> 
>     You need to think different when using forward chaining. Your data
> will
> drive the execution, not your "goals".
>     So, the state of your facts match rule B twice, it will fire twice.
> 
>     "Stupid" example:
> 
> rule "1. increment counter"
>    salience 10
> when
>     $c : Counter( value < 2 )
> then
>     System.out.println( "firing rule 1" );
>     $c.setValue( $c.getValue() + 1 );
>     modify( $c );
> end
> 
> rule "2. diplay counter"
> when
>     Counter( $value : value )
> then
>     System.out.println("Value = "+$value);
> end
> 
>    If you do:
> 
> wm.assertObject( new Counter( 0 ) );
> wm.fireAllRules();
> 
>     Rules will fire:
> 
> 1 -> 1 -> 2
> 
> 2007/5/9, ch4nd4n <chandan_kumar at msn.com>:
>>
>>
>> Hi,
>> is there a possibility to fire a particular rule twice?
>>
>> For example if I have Rules "A", "B", "C", "D" and I am putting a Person
>> Object with few parameters,
>>
>> Then how can I fire in following order
>>
>> A -> B -> C -> B -> D
>>
>> Thanks,
>> Ck
>> http://www.gfour.net
> 

Hi Ed,
Thanks for the clarification. Your example gave me a clear picture how it
can be controlled. My attempts to get something like this done, was ending
up in endless loop. I was forced to use no-loop, which of course would
disable the purpose.

--
Ck
http://www.gfour.net
-- 
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