[rules-users] Rule(s) based on different (fact) dates (date-effective/date-expired?)

[Wolfgang Laun]

Where do you have problems? date-effective and date-expired simply delimit
the time interval when a rule is capable of firing.

If you have a field of type Date in a fact you can base your rule on this
value being before, equal to or after some other Date value in another fact,
or a literal, written as a quoted string. All relational operators are
applicable, with the natural interpretation.

-W


On 19 August 2011 15:53, dhartford <binarymonk01 at yahoo.com> wrote:

> Hey all,
> I see a couple of posts in the mailing list/forum around the date-effective
> and date-expired.
>
> Forgive my ignorance, I'm still learning as I go, but I have this example
> and I'm wondering if that is where I should look, or if that is the wrong
> path:
>
> Given the mortgage example, lets say you have LoanApplications come in with
> an 'Application Date'.
>
> There may be one rule that has 3 different versions (all versions 'active')
> depending on the date of the application, and the application may come in
> later, and/or a rule may be a retroactive rule (I just made a new rule, but
> it came into effect two days ago (say during a weekend and is only for
> those
> two days), so any ApplicationDate based loan applications that show up on
> Monday with dates from the past two days should use that retroactive rule
> instead of, potentially, a new 'current' rule).
>
> This is not the same as history (what *was* the rule(s) as of prior
> Friday),
> which is also important, which is why I'm asking if someone has tackled
> this
> area that will help someone new understand the best approach for date-based
> rules while understanding/retaining history.
>
> thanks!
> -Darren
>
>
>
> --
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> Sent from the Drools: User forum mailing list archive at Nabble.com.
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