Yes that is also the case.
Mark
Stuart Schmukler wrote:
I hope we will have this work for all objects of a class also. For example:
not Person()
which says, there is NO person.
Stuart
---- On 13 Feb 2006 12:25:47, [EMAIL PROTECTED]
([EMAIL PROTECTED]) wrote:
From: Michael Neale <[EMAIL PROTECTED]>
To: [email protected]
MIME-Version: 1.0
Subject: Re: [drools-user] Firing rules when something DOESN'T exist
yeah thats a really powerful feature, and is definately going to be part of
Drools 3.
It will work something like:
not Person(name == "michael")
which says, there is NO person called michael.
Of course, you can work around this now, either by baking some of the logic
into your model, or looking through working memory (which is possibly
slower).
Regards,
Michael.
On 2/11/06, Mitch Christensen <[EMAIL PROTECTED]> wrote:
Hey,
I've used rules engines in the past the support the notion of a NOT
pattern/conditional element for firing rules when a particular item
doesn't
exist in working memory. Does Drools support such a feature? I can't
find
it in the docs.
I want to apply the following logic:
IF there is an event object available
AND there is no existing event history object
THEN.
-Mitch
