[rules-users] Drools' use of hashCode

[Wolfgang Laun]

Updating a fact does not affect any other fact containing a reference to
that updated fact. Thus, father == $father isn't changed.

If, however, the Child object changed via the Father method were a fact, an
update() of that Child fact would usually be required.

-W

On 21 June 2011 16:02, M. H. <hugues_81 at hotmail.com> wrote:

> Ok Thanks for your answer.
>
> I just looked more closely, and actually it looks like what I was doing
> just
> can't work this way: when I update the father in rule 1, then I can't join
> it with its GdFather anymore without updating it too, am I right?
> Or I would have to use eval(father==$father) instead of simply
> father==$father which uses equals() and hashCode(), but then I'll lose all
> the performance?
>
>
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