[rules-users] Caching RuleBase in Drools

[Robert Crawford]

On Aug 11, 2008, at 9:30 AM, Ingomar Otter wrote:

> >" Typically, a rulebase would be generated and cached on first use;  
> to save
> >on the continually re-generation of the Rule Base; which is  
> expensive."
> Read:   Cache the rulebase (the rulebase object) with a Cache  
> mechanism of your choice.
>
> AFAIK there is no dedicated caching mechanism in Drools per se.
> This makes sense, otherwise the next person would look for cache  
> distribution, cache synchronization in a cluster. A can of worms  
> that should not be touched.
>
> For example we use JBOSS TreeCache and are happy with it. This may  
> be overkill, simpler implementations  like oscache may just be fine  
> - all depends on your requirements and deployment situation.

I've just been using a singleton for the moment, tossing it and  
rebuilding when the rules change. Works OK.