[rules-users] drools dynamic LHS

[Greg Barton]

This design would get my vote, especially if the rules for each state diverge even slightly.  The thing is, this kind of divergence can become a nightmare over time if you design too tightly to any initial requirements. The initial divergence always increases. :)  One main selling point for rule based systems is that they're supposed to scale to higher complexities.  They can if your design allows for it. 

Also, there's no reason that several states couldn't share the "facts per state" rules if their rules were identical.

--- On Tue, 5/24/11, Ansgar Konermann <ansgar.konermann at googlemail.com> wrote:

> From: Ansgar Konermann <ansgar.konermann at googlemail.com>
> Subject: Re: [rules-users] drools dynamic LHS
> To: rules-users at lists.jboss.org
> Date: Tuesday, May 24, 2011, 6:28 PM
> Am 25.05.2011 00:34, schrieb
> marunam:
> > What I was thinking was, creating fact object
> dynamically with its
> > attributes being loaded from some properties file
> dynamically?? 
> >
> > Any other solution/suggestions?
> Create pre-compiled rule packages: one for each state and
> one for the
> generic rules, and merge the latter with one of the "facts
> per state"
> when preparing the knowledge base.
> 
> Works well for our use case (multiple customers), should do
> equally well
> for a number of states.
> 
> Best regards
> 
> Ansgar
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