Can you view the package source in Guvnor and report if it shows an
explicit dialect?
IIRC you are not the first person who has experienced this type of
behaviour.
sent on the move
On 20 Jan 2012 21:52, "domingo" wrote:
> I have one simple rule, just check the boolean attribute of the object a
Thanks,
I tried 5.3 final, as you said, It gives very detailed error message . I
changed to 5.2 Final to 5.3 Final.
Thanks for the info :)
-
with kind regards,
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I have one simple rule, just check the boolean attribute of the object and
print the value of the boolean, that simple rule. I am using java as my rule
dialect. I found something interesting while debugging.
1. When i read the drl file from the local file stream I found the
following...
I have some issues using changeset...
Experiment - 1
when i use the above changeset (thanks to user forum)...the program works
fine no issues but i got the following warning messages...
(null: 1, 201): schema_reference.4: Failed to read schema document
'drools-change-set-5.0.xsd', bec
Apart from these considerations, you may also need to take into account
performance and memory differences between the two approaches.
In my Drools.5.0.1 project, I was tempted by declarative facts at first,
until I found out that at runtime you need approximately 3 times the
memory and you incur
With Guvnor, you can also use "working set" (see here ) to restrict the
availiable fields to expose to a business user, by selecting class and/or
fields of an existing class, and even more (businnes contraints on values, with
rules).
The only problem I see with working sets, is that you must ex
In alternative, if you want total decoupling, you can define /interfaces/
that your classes extend, and write the rules against the interfaces, rather
than the classes. This might help when you have different formats and
improves the portability of your rule base.
The classes would have to impleme
If you are starting from scratch, this is possible. However, I find myself
having to expose operations from the *preexisting* technical domain into
the business (i.e expose methods from existing technical domain code that
has all kinds of annotations and code references to 3rd party software).
Hmm, I tried 5.2.0, and it doesn't even compile when I call a global's method.
-W
On 20/01/2012, Wolfgang Laun wrote:
> Strange - I see a full stack trace. Must look into this, can't have
> suppressed important info. There's an improved consequence exception
> handler available with 5.3.0.
>
>
Strange - I see a full stack trace. Must look into this, can't have
suppressed important info. There's an improved consequence exception
handler available with 5.3.0.
-W
On 20/01/2012, domingo wrote:
> First of all thanks for your reply,
> I agree with you, the concern here is syntactically drl
First of all thanks for your reply,
I agree with you, the concern here is syntactically drl file is ok and it
compiles and build the knowledgebase.
In run time consequence part get executed in that time it noticed global is
null, this behavior is just like a java NPE. The point here is the message
Some code snippets that I've used:
import org.drools.time.SessionPseudoClock;
SessionPseudoClock clock;
void advance( Date eventDate ){
long currentTime = clock.getCurrentTime();
long eventTime = eventDate.getTime();
clock.advanceTime( eventTime - currentTime
Not so long ago there was talk about some highly innovative development
that would permit you to write rules to control the agenda logic, something
to supersede the bestiary of features that came into being over the years.
I'm not quite sure about the status of this feature -probably still is
expe
This is interesting...
Is there
A) Any reason why it is not possible to put rules into multiple agenda
groups? After all, it should be a filter, not a package.
B) Any plans on making this feasible in future releases?
ftr, The same questions can be asked about ruleflow-groups.
Until now, I a
The simplist solution is just to change your condition to be $a : Applicant(age
< 18, valid != false)
Thomas
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Esteban Aliverti
Sent: 20 January 2012 14:20
To: Rules Users List
Subject: Re: [rules-
Hi,
unfortunately I haven't found any way to set the pseudo clock according to
timestamp (the "session.insert()") in
org.jboss.soa.esb.actions.BusinessRulesProcessor which I am using to fire
the rules from ESB.
I'll try to write my own class to fire the rules, where I can also use
"session.ins
Simple example loops ad infinitum if executed:
package spikes;
import org.springframework.roo.addon.javabean.RooJavaBean;
@RooJavaBean
public class Applicant {
private final String string;
private final int age;
public boolean valid=true;
public Applicant(String string, int i) {
this.string
import spikes.Applicant
rule "Is of valid age" when
$a : Applicant( age < 18 )
then
modify( $a ) { valid = false };
end
By using modify() you are telling the engine that $a was modified in some
way. This causes the re-evaluation of your rule, and since $a.age is still
< 18, then the rule is
Let me mention that I've used Java classes derived from XML Schema
as facts.
If there are technical properties you'd like to hide from the rule programmer,
define a "business" type and extend it with the technical properties. The
rule programmer must make do with the "business" type, which is
poss
Hi Davide,Thanks for your thoughts. The application is just a service which takes an XML request, converts that into a fact and inserts that into the working memory. Based on rule evaluations, it responds to the client with more XML indicating whether the requested action is permitted.On of the key
Hi Steve,
let me share my thoughts on this.
You will probably want to use a Java model when it's already available :) Or
when you're using the rule engine to implement the business logic layer of
your application, processing data coming from an external source.
A DRL model, instead, is definite
Not by a single method call, if that's what you mean. (All the
operations I indicated are part of the API.)
-W
On 20/01/2012, Vis wrote:
> Thanks for your reply.
> Yes, in this it can be done.
> But WHat I meant here, is there any Drools API available to support it?
>
> --
> View this message in
We have also added the ability to use BRL Fragments as columns in the
guided Decision tables (for 5.4.0.beta2).
http://blog.athico.com/2012/01/guided-decision-table-supports-brl.html
You could then define a column as:-
$c : Company()
Company (this == $c, something = {templateKey} )
In rows wher
I'll inform if the error still remains.
Need to test with big data.
@Data and @EqualsAndHashCode annotation is lombok library to create setter
and getter while compile.
2012/1/20 Michael Anstis
> Does your problem remain?
>
> The DRL and Java code appear fine.
>
> If you are still having probl
Hi folks,I quite like the clean separation provided by maintaining a declarative fact model rather than a Java model. In particular to me, it seems to make it easier to manage rules in Guvnor separate from my runtime environment. However I can also see how maintaining a Java model simplifies some a
Maybe this can be of interest?
http://blog.athico.com/2011/08/declarative-agenda-and-control-rules.html
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The best solution is to only insert the rulse you actually want into the
knowledge base.
Another option may be not to use agenda groups (or just agenda groups) but have
a
control fact as the first condition of all your rules eg
when
UseCase(name =="abc")
...
Then
Thomas
>
Hi,
We have many agenda-group based rules defined in application and while
firing rules, we set specifc agend group based on different use cases to the
session.
In evaluation phase of rules, it not only evaluate rules related with agenda
set to the session but also other rules which are not belon
On 2012/1/19 19:29, arup wrote:
> I have modified the pom.xml as mentioned in
> "https://community.jboss.org/wiki/DeployingGuvnor5OnWebSphere"; . also
> created the custom propertied in WAS. but after installing the guvnor 5.1
> war when i'm trying to get the login page hitting the url i'm just get
There isn't a nice way to do this unfortunately.
One hack around it is to have two columns with the object merged across them
The first column would have the condition $a : Company(this != $param), every
cell in the column is then given the value 'null'.
This would then always ensure that $a will
Thanks for your reply.
Yes, in this it can be done.
But WHat I meant here, is there any Drools API available to support it?
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Hi,
I am trying to write a template and came across a scenario where one of the
condition cell $a : Company(condition), When
condition is left blank then entire predicate is missed and iam using the
ref of the company obj $a to set some values which is failing as the
declar
Does your problem remain?
The DRL and Java code appear fine.
If you are still having problems, please explain your entire process to
replicate the problem: from authoring in Guvnor, to creating a
KnowledgeBase, Session and calling fireAllRules. Can you please also advise
if the problem remains if
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