[rules-users] Checking fact "id"

[Edson Tirelli]

   What attribute differentiates A1 from A2?
   Such scenarios usually are solved by an additional constraint...

   []s
   Edson

2008/1/4, Massi Gmail <mmquelo at gmail.com>:
>
>
> Hi guys,
>
> Now I am strugglin' with "fact id checking"  or whatever we can call
> it.... :D
>
> Let's take into account the followong scenario:
>
> I have class A (it's just a name) javabeans to be inserted into the WM.
>
> I define two objects of class A: A1 and A2.
>
> Somewhere I do "insert(A1)" and "insert(A2)" ( let's say I do it in the
> same package of R1 and R2..see below...)
>
> Then I define two different rules R1 and R2 that reason over class "A"
> facts  (let's say R1 and R2 are in the same package) .
>
> The point is....  I want R1 to fire only on A1 and R2 only on A2.
>
> Is that possible in drools? Is there a sort of "fact id" I can reason
> over?
>
> I do not think globals will be of any help, cause in the guide i have read
> that globals should never be used within LHS.
> We should never reason over globals.
>
> Let me know.
>
> Massi
>
>
>
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>
>


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