Large Decision Table Example Wanted
by Mark Proctor
We are looking for real world example decision tables that are 2K or
even 5K rows big or even 10K :)
This will allow us to demonstrate what really large decision tables look
like as well as allowing us to stress test our web based system and show
that it can handle problems of that size.
Anyone able to donate such an example, or can point to an existing one?
It is important that such a decision table comes with enough unit tests
to show that it contains a valid data set.
Mark
15 years, 3 months
Question about in XML: literal-restriction on "null" value
by Christina Lau
Dear all,
My system is transforming internal data structure to drools rule language
XML file. For particular evaluation on a string field, how can I do so
happen the evaluating value is one of the keywords?
For example,
I need to check if
keyValue=="null"
In rule language in XML, through the XmlDumper,
<field-constraint field-name="keyValue">
<literal-restriction evaluator="==" value="null" />
However, this is the same for evaluation of
keyValue==null //check if keyValue is null or not
Would someone know how to tell the engine the different scenario in rule
language XML file,
evaluate on the content, and
nullable of the field?
Thanks a lot for your help
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15 years, 3 months
Reg: Drools with Jboss esb.
by Sathya Prakash
Hi ,
I am using JBOSS ESB for drools integration.when Drools is password
protected then where i need to pass credentials?
What is the key name i should mention in brms properties?
<action class="org.jboss.soa.esb.actions.BusinessRulesProcessor"
name="RuleAgentPolicyService">
<property name="ruleAgentProperties"
value="ruleAgent/brmsdeployedrules.properties" />
<property name="object-paths">
<object-path esb="body.Driver" />
<object-path esb="body.Policy" />
</property>
</action>
--
Cheers,
Sathya Prakash.
*సత్య ప్రకాష్*.
15 years, 3 months
dsl file in other folder
by Saleem Lakhani
How can I access dsl file which is not in the same folder as the dslr;
expander application.dsl {application.dsl is not in the same folder as
dslr}
thanks,
saleem
15 years, 3 months
Object updated as rules are running
by Jon Gil
Hi, I have a very simple rules flow that I am getting odd results from. For
now, our project is planning on using spreadsheets and a drools server.
The test project we are working on accepts a movie name from an external
source and creates a Movie object that is passed to the rules. The first
rule looks at the movieName attribute and assigns it a movieStar using the
Movie objects setMovieStar call. We have printLn statements before and
after this action to confirm that it does in fact work.
The second rule, where things go wrong, checks the MovieStar attribute, but
no matter what we've just set it to, it always uses the value
("NoStarYet") that was originally created when we create the Movie object in
our Java code in the condition of our second rule. We've tried using the
getMovieStar call in the condition, but it has been throwing errors when we
startup the Drools Server.
When we retreive the Movie object from the resultSet, the movieStar
attribute is set correclty, but we can't get our flow to go as expected.
This really seems like a simple issue, but we've had no luck with it. Any
thoughts? Does the rules engine use the getter methods for conditions or
does it use the values from the entityXML we pass in? Is there a way to
make the engine update the object between running each rule?
Any help is appreciated greatly.
15 years, 3 months
Red Hat & Accenture: BRMS & BPMS Event (London)
by Mark Proctor
http://blog.athico.com/2011/02/red-hat-accenture-brms-bpms-event.html
---
Red Hat & Accenture: BRMS & BPMS Event (London)
Posted by Mark Proctor
Registration Page:
https://engage.redhat.com/forms/UK_Event_Accenture290311
Join Red Hat and Accenture on Tuesday 29th March at Accenture Old Bailey
to understand how Business Rules Management Systems (BRMS) and Business
Process Management Systems (BPMS) can help businesses leverage
technology more effectively and increase productivity. See how
Enterprise Open Source is leading the way with powerful capabilities and
industry-leading innovation.
There will be 2.5 hours of technical talks.
Speakers:
Mark Proctor - Drools Co-Founder and Poject Lead
Kris Verlaenen - jBPM Lead
Michael Anstis
Geoffrey de Smet
Talks:
Introduction to Rule Based Systems (Mark Proctor)
Introduces Drools and explains what a rule based system is and how it works
Why BPMN2 Matters (Kris Verlaenen)
jBPM5 has just been released as premier Open Source BPMN2
implementation. Come and hear how this changes your whole legacy
approach to BPM.
Using Guvnor for Enterprise Systems (Geoffrey de Smet)
Guvnor provides a web interface to your knowlege systems, such as rules
and bpm. This talk provides a gentle introduction into Guvnor and how to
use it.
Decision Tables in Depth (Michael Anstis)
Decision Tables is now a major focus for us, we want to show you why
we'll have the slicket decision table environment out there.
15 years, 3 months
Knowledge Agent example
by vamshidhar reddy chitti
Hi All,
I was trying to get going with KnowledgeAgent and trying to understand how rules changes at runtime.Can anyone provide me a example or a basic tutorial for changing the rules at runtime so the knowledgebase is recreated. Any pseudocode can also be helpful.
I tried to find googling, but there is only theory which is a bit complicated.
Any help would be appreciated.
RegardsVamshidhar
15 years, 3 months
Check all elements of a list (Drools Expert)
by Petr Chelčický
Hi! I'm trying to write rules in Drools Expert. In the when part of the rule, I check some properties of an Application object. This object contains a List and I would like to check if a bunch of rules apply to all objects of SomeOtherType in this list. The rule should fire only when the constraints are valid for ALL objects in that list. How could this be done?
15 years, 3 months
Date Condition in Decision tables
by sdinoo
I am new to drools. I've searched in this forum as well as in the
documentation but I havent found any solution to the situation that I am
facing
I have a Claim object that has 1 date member variable called
claimRequestDate
I want to achieve a rule that if the claimRequestDate is 65 days old from
now then fire that rule
I want to achieve like if (now - claimRequestDate) > 65 then fire the rule
I want the "65" number to be in the rule data so that the business analyst
can change it at will
Has anyone tried this?
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15 years, 3 months
JBPM5(Drools Flow 5.2.0.M1) - Threading model
by OptimusPrime
Hi,
in our projects we use the HttpInvoker component of Spring to interact with
our remote KnowledgeBase through HTTP, which means JBPM5 is deployed in a
servlet container.
Our Websphere admin is afraid that JBPM5 creates its own threads instead of
using the thread provided by the container.
In short:
- Does JBPM5 always executes in the thread of the caller ?
- What is the purpose of the 'multithread' element in drools-spring.xsd
(drools-spring-5.2.0.M1.jar) ?
I cannot find answers in the documentation :-(
Also, it would be a good idea to document the XSD like Spring does with
<xsd:documentation /> tags.
Thanks to the community,
Max
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15 years, 3 months
