[rules-users] Moving from Jrules to Drools a couple of Issues

[Greg Barton]

Pithy as usual, Mark. :)

Paul, you partially mention a way to go about it: dependency injection.

http://en.wikipedia.org/wiki/Dependency_injection

The best way to do that these days is with Spring using the Inversion of Control pattern:

http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/

http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/beans.html

--- On Thu, 5/27/10, Mark Proctor <mproctor at codehaus.org> wrote:

> From: Mark Proctor <mproctor at codehaus.org>
> Subject: Re: [rules-users] Moving from Jrules to Drools a couple of Issues
> To: rules-users at lists.jboss.org
> Date: Thursday, May 27, 2010, 5:31 AM
> On 27/05/2010 11:04, paulnnosh
> wrote:
> > I Just need clarification on the injection of POJOs to
> give access to
> > application services etc...
> >
> > I understand the fact that POJOs inserted into the
> working memory are direct
> > references to the actual objects inserted by the
> calling application, that's
> > great. However, currently in Jrules (sorry to keep
> telling you what we have
> > already!) a number of our functions make regualr use
> of a large number of
> > our core application classes. To have to insert all of
> these each time a
> > ruleset is called would soon become unwieldy and I
> have concerns about the
> > amount of working memory that would be required. Is it
> possible to create a
> > reference to my application and initilise this at the
> start up of the server
> > so that these classes are available to my packages
> without having to load
> > them into WM each time?
> >    
> Globals.
> 
> Mark
> > Many Thanks
> >
> >
> >    
> 
> 
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