[rules-users] Re: Constants on LHS?
Thanks. My problem with this is that these constants would have to be
defined in my Java application and then inserted into the session, I
think. What I would aim for is to have ALL the business logic in the
DRL file, but setting constants such as lowTargetLimit = 80 in the
application and then pushing that into the session object does not
make sense to me.
As I write the DRL file with more confidence, I suppose I will end up
creating a DSL. I was just hoping there might be a simple way to
establish constants.
Thanks again.
- Mike
Date: Sun, 9 Dec 2007 15:18:22 -0500
From: Andy Mei <andy.d.mei(a)gmail.com>
Subject: Re: [rules-users] Constants on LHS?
To: Rules Users List <rules-users(a)lists.jboss.org>
Cc: "rules-users(a)lists.jboss.org" <rules-users(a)lists.jboss.org>
Message-ID: <F8286E17-CE76-42D7-B49D-089901282452(a)gmail.com>
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Try global VAR
Sent from my iPhone.
PLs excuse typing mistake.
On Dec 9, 2007, at 12:48 PM, J Michael Dean <mdean77(a)comcast.net>
wrote:
> I have not been able to figure out how to define "constants" that
> can be used replace numbers, etc. on the LHS of rules, and am not
> quite at the stage where I can set up a DSL. Is there a way to
> accomplish this?
>
> For example, I have a simple rule to determine if glucose is below
> the targeted range; the lower limit of the target is 80. Quickest
> solution:
>
> when
> decision : GlucoseDecision(serumGlucoseConcentration < 80)
> then
> DO something
>
> But I want to be able to write:
>
> when
> decision : GlucoseDecision(serumClucoseConcentration <
> lowTargetLimit)
> then
> Do something
>
> so that I can set all these constants in one place, etc.
>
> Is there a way to accomplish this inside the DRL?
>
> - Mike
>