No, lock-on-active is not required since the LHS tests for the field value1 being false. You can verify easily (just add a high-salience rule that inserts one ObjectOneTwo) that the full code works correctly, as posted. So, this is not the code that "causes the problem".

What else might happen? There could be more than one ObjectOneTwo, so the first rule might fire again with another one of these. Or some other rule resets value1 of the (single) ObjectOneTwo. Or the object is retracted and inserted anew.

Posting of code that does not reproduce the problem isn't helpful either.

-W


2011/9/19 Mauricio Salatino <salaboy@gmail.com>
so lock-on-active will help.. you should add that in both rules
rule "one"
   lock-on-active
   then
     ...
   when
end

On Mon, Sep 19, 2011 at 3:05 PM, skasab2s <skasab2s@smail.inf.fh-brs.de> wrote:
Thanks for the reply. This is the full code:

/declare ObjectOneTwo
 value1 : boolean
 value2 : boolean
end

rule "first rule"
 when
     $objectOneTwo : ObjectOneTwo (value1 == false)
 then
     $objectOneTwo.setValue1(true);
     update($objectOneTwo);
 end

rule "second rule"
 when
    $objectOneTwo : ObjectOneTwo (value2 == false)
 then
      $objectOneTwo.setValue2(true);
     update($objectOneTwo); //<-- this is where "first rule" fires once
again (not desired for me and that's the problem)
 end
/


Thanks

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