I'm using Drool 5. I reviewed globals and it looks like it might be appropriate for
my situation. I find plenty of documentation on how to use a global in a consequence, but
none on how to use a global in a condition. Do you know if it's possible to use a
global in a condition? My situation is that I need to check a container class to see if
the container is filled, if not then fill the container (the condition would actually be
more elaborate and include facts but I'm omitting them for the sake of brevity). The
DRL file would look something like this (the example doesn't work of course):
global com.example.Container globalContainer;
rule "container full rule"
when
globalContainer.getContentsFlag() == false
then
globalContainer.fill(new ContainerContents());
globalContainer.setContentsFlag(true);
--- On Fri, 7/29/11, Esteban Aliverti <esteban.aliverti(a)gmail.com> wrote:
From: Esteban Aliverti <esteban.aliverti(a)gmail.com>
Subject: Re: [rules-users] How to add application data via StatefulKnowledgeSession
To: "Rules Users List" <rules-users(a)lists.jboss.org>
Date: Friday, July 29, 2011, 3:51 AM
Which version of drools are you using? The document you pointed out seems a little bit
old.Since Drools 5, you can use globals to use application's data in your DRLs.If you
are using Drools 5 or higher, I suggest you to read the documentation about globals.
Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @
http://www.plugtree.com
- Blog @
http://ilesteban.wordpress.com
2011/7/28 Matthew Erler <wires8(a)yahoo.com>
Can someone please show me an example where application data is added to
workingMemory as described here:
http://docs.codehaus.org/display/DROOLS/Application+Data using
StatefulKnowledgeSession?
I have a need to populate an object from a rules file and I don't want that
object itself to be treated as a rule. All the examples I can find refer to
the use of ruleBase to get workingMemory. My code utilizes
StatefulKnowledgeSession to fire rules and I don't see how to get ruleBase
or workingMemory from it. Thanks.
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