Re: [rules-users] Fully qualified name for generated classes
by Lance Leverich
The issue isn't that Foo cannot be resolved, as it was imported into both
packages from the Global Area. The packages compile just fine. I believe
what might be happening, though, is that each package is creating its own
version of Foo.
For example, am I experiencing something like...
com.mypkg.a generates a class with a fully qualified name of
drools.com.mypkg.a.Foo
com.mypkg.b generates a class with a fully qualified name of
drools.com.mypkg.b.Foo
?
If this is the case, is there someway within Guvnor to refer to a
particular version? I'm beginning to think that my best option might be to
create a POJO and import it. At least that way, I can make sure I know the
fully qualified (i.e. canonical) class name.
~ Lance
Cc:
> Date: Wed, 4 Sep 2013 15:41:55 +0100
> Subject: Re: [rules-users] Fully qualified name for generated classes
> Guvnor's Global Area has no affect on fully qualified type names; it's
> just a container for things you want to share.
>
> If Foo could not be resolved in myRuleB the rule would fail to compile.
>
> What do you observations show if you don't have any rule flow?
>
>
> On 4 September 2013 15:28, Lance Leverich <lance.leverich(a)gmail.com>wrote:
>
>> What would be the fully qualified name for a generated class, that is
>> based upon a fact type (for example a type named "Foo") that is defined
>> inside a declarative model?
>> How is the fully qualified name affected if the model resides in the
>> Global Area, and is imported into multiple packages?
>>
>> The reason for my question is that I have the following issue:
>>
>> In the Global Area, I have a declarative model (named MyModel) with a
>> definition like...
>> declare Foo
>> bar: String
>> version: String
>> end
>>
>> In a package (com.mypkg.a), I have imported MyModel from the Global Area.
>> I have a rule like...
>>
>> rule "myRuleA"
>> ruleflow-group "firstGroup"
>> when
>> not Foo( bar=="bar" )
>> then
>> Foo fact = new Foo();
>> fact.setBar("bar");
>> fact.setVersion("1");
>> insert(fact);
>>
>> In another package (com.mypkg.b), I have also imported MyModel from the
>> Global Area. I have a rule like
>>
>> rule "myRuleB"
>> ruleflow-group "secondGroup"
>> when
>> Foo()
>> then
>> System.out.println("got at least one Foo");
>>
>> Looking at logs, the rule myRuleA fires as is appropriate; however, the
>> rule myRuleB does not fire, even though both ruleflow groups are
>> represented in the ruleflow. I have verified that both of the ruleflow
>> groups are activated, using the logs. My best guess at this point is that
>> the class generated for fact type Foo is different for each package. So,
>> how can I make sure that I am instantiating and checking for the same type
>> across packages?
>>
>>
>>
>> Lance Leverich
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
11 years, 3 months
Fully qualified name for generated classes
by Lance Leverich
What would be the fully qualified name for a generated class, that is based
upon a fact type (for example a type named "Foo") that is defined inside a
declarative model?
How is the fully qualified name affected if the model resides in the Global
Area, and is imported into multiple packages?
The reason for my question is that I have the following issue:
In the Global Area, I have a declarative model (named MyModel) with a
definition like...
declare Foo
bar: String
version: String
end
In a package (com.mypkg.a), I have imported MyModel from the Global Area. I
have a rule like...
rule "myRuleA"
ruleflow-group "firstGroup"
when
not Foo( bar=="bar" )
then
Foo fact = new Foo();
fact.setBar("bar");
fact.setVersion("1");
insert(fact);
In another package (com.mypkg.b), I have also imported MyModel from the
Global Area. I have a rule like
rule "myRuleB"
ruleflow-group "secondGroup"
when
Foo()
then
System.out.println("got at least one Foo");
Looking at logs, the rule myRuleA fires as is appropriate; however, the
rule myRuleB does not fire, even though both ruleflow groups are
represented in the ruleflow. I have verified that both of the ruleflow
groups are activated, using the logs. My best guess at this point is that
the class generated for fact type Foo is different for each package. So,
how can I make sure that I am instantiating and checking for the same type
across packages?
Lance Leverich
11 years, 3 months
ClassNotFoundException org.drools.compiler.kie.builder.impl.KieModuleCache$KModuleCache in Grails project
by Martin Minka
working projects are attached
This simple code works in Groovy project:
{code}
KieServices ks = KieServices.Factory.get();
KieRepository kr = ks.getRepository();
KieFileSystem kfs = ks.newKieFileSystem();
// String drl = new File("rules/r1.drl").getText()
// kfs.write("src/main/resources/org/kie/example5/HAL5.drl", drl);
KieBuilder kb = ks.newKieBuilder(kfs);
kb.buildAll(); // kieModule is automatically deployed to KieRepository if
successfully built.
{code}
but it fails with error if executed in Grails 2.2.4 application
{code}
1. ERROR errors.GrailsExceptionResolver - ClassNotFoundException
occurred when processing request: [GET] /grails-drools6/drools/index
2. org.drools.compiler.kie.builder.impl.KieModuleCache$KModuleCache.
Stacktrace follows:
3. Message:
org.drools.compiler.kie.builder.impl.KieModuleCache$KModuleCache
4. Line | Method
5. ->> 366 | run in java.net.URLClassLoader$1
6. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-
7. | 355 | run in ''
8. | 354 | findClass . . . . . . . . in java.net.URLClassLoader
9. | 424 | loadClass in java.lang.ClassLoader
10. | 357 | loadClass . . . . . . . . in ''
11. | 2521 | privateGetDeclaredMethods in java.lang.Class
12. | 1845 | getDeclaredMethods . . . in ''
13. | 46 | getLocked in
org.codehaus.groovy.util.LazyReference
14. | 33 | get . . . . . . . . . . . in ''
15. | 64 | loadEngine in grails.drools6.DroolsService
16. | 8 | index . . . . . . . . . . in
grails.drools6.DroolsController
17. | 195 | doFilter in
grails.plugin.cache.web.filter.PageFragmentCachingFilter
18. | 63 | doFilter . . . . . . . . in
grails.plugin.cache.web.filter.AbstractFilter
19. | 1145 | runWorker in
java.util.concurrent.ThreadPoolExecutor
20. | 615 | run . . . . . . . . . . . in
java.util.concurrent.ThreadPoolExecutor$Worker
21. ^ 724 | run in java.lang.Thread
{code}
do I need to configure custom (Grails) class loader to Kie ?
11 years, 3 months
JBPM : Need solution with SwimLane
by Zahid Ahmed
Hi,
I am testing swim lanes for a scenario in my requirements. But, I am unable to get my desired results.
Scenario: The scenario is that when a subordinate task completes and assigns back to ManagerTask. The manager who assigned the task should be getting the task again now without having to claim it. For this I have tried to use swim lanes but its not working. PFA BPMN2 and process image.
[cid:image001.png@01CEA7F1.E4F40F80]
Regards,
Zahid
11 years, 3 months
Guvnor Version
by pritha.ghosh＠wipro.com
Hi,
Please let me know the compatible drools guvnor version for JBoss EAP 6.1
Thanks,
Pritha
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11 years, 3 months
temporal reasoning/drools fusion: basic question
by amarok
Does fusion support temporal reasoning on futur events?
E.g. I want to define rules like the following:
If within 5 minutes after Event X there is NOT an Event Y
Then do [...]
This rule would then be "initiated" when an Event X occurs, and would be
"fired" when within the next 5 minutes no Event Y follows.
If this does not work with fusion, what would you recommend?
If it does, could someone post a very simple .drl example for such a rule?
--
View this message in context: http://drools.46999.n3.nabble.com/temporal-reasoning-drools-fusion-basic-...
Sent from the Drools: User forum mailing list archive at Nabble.com.
11 years, 3 months
