[rules-users] Checking fact "id"

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