[rules-users] Using JBoss Rules in cases where users need to add / remove rules

Mark Proctor mproctor at codehaus.org
Sat Aug 4 16:10:09 EDT 2007


Just remove the entire rule and re-add it again, but with a different 
consequence.

Mark
Robert Burdick wrote:
>
> Hello All:
>
>  
>
>     I am trying to figure out if JBoss Rules will be suitable for my 
> application
>
>     needs.  Maybe you can give some insight.
>
>     My application needs to implement / use a rules engine for evaluating
>
>     conditions and firing off events when those conditions are met.  
> So far this
>
>     sounds exactly like the sort of thing that JBoss Rules is for.  
> The twist is
>
>     that my application will also provide an administrative utility 
> that allows
>
>     admins to add or remove rules, as well as modify the conditions 
> that trigger
>
>     these rules.  Can JBoss Rules be used to do this?  All of the 
> examples I've
>
>     seen so far seem to incorporate rules whose consequences are 
> fixes, but with
>
>     changeable conditions.  For example, there are lots of samples out 
> there
>
>     like an insurance application.  Such an example has consequences 
> such as
>
>     offerQuote, turnDownCustomer etc. that don't change, but with 
> conditions
>
>     that do change.  For example, today offer quotes to all good drivers,
>
>     tomorrow change the rule to offer quotes to all good drivers over 
> the age of
>
>     18.  The conditions change, but the basic actions in the system 
> are common.
>
>  
>
>     What I think my requirement implies is a way to define rules with 
> conditions
>
>     and the corresponding consequences code at runtime.  This seems to 
> imply
>
>     that the application code needs to be dynamic, in order to allow 
> users to
>
>     define arbitrary consequence code.  Has anyone ever tried to do 
> something
>
>     this generic with JBoss Rules, and better, can you fill me in on 
> how to go
>
>     about this?
>
>    
>
>     
>
>    
>
>     Thanks, Robert
>
>    
>
> ------------------------------------------------------------------------
>
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