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&gt; > Subject: Re: [rules-users] Constants on LHS? > To: Rules Users List <rules-users(a)lists.jboss.org&gt; > Cc: &quot;rules-users(a)lists.jboss.org&quot; <rules-users(a)lists.jboss.org&gt; > Message-ID: <F8286E17-CE76-42D7-B49D-089901282452(a)gmail.com&gt; > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes > > 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&gt; > 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 >> _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users