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

   But that is because your "state" (facts) drive them in that way. Do you
understand that? Try removing salience attribute and check if there is any
difference. Try making rule 2 higher salience than rule 1. Try asserting
different values for the counter, like new Counter( 2 ).

   []s
   Edson


2007/5/9, ch4nd4n <[EMAIL PROTECTED]>:


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
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--
 Edson Tirelli
 Software Engineer - JBoss Rules Core Developer
 Office: +55 11 3529-6000
 Mobile: +55 11 9287-5646
 JBoss, a division of Red Hat @ www.jboss.com
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