[rules-users] Automatic updating of Guvnor Rules appears to be not working.

Stephen Mcgruer s0840449 at sms.ed.ac.uk
Thu Jun 24 09:20:46 EDT 2010


Sorry, I'm using Drools 5.0.1

Cheers,
Stephen

Quoting Esteban Aliverti <esteban.aliverti at gmail.com>:

> Which version of drools are you using?
>
> On Thu, Jun 24, 2010 at 5:33 AM, Stephen Mcgruer   
> <s0840449 at sms.ed.ac.uk>wrote:
>
>> Hi there. I'm trying to get automatic update of rules working in my
>> project, and seem to
>> have run into a problem. As far as I can tell, automatic polling and
>> updating is turned
>> on, and claims to update the knowledgebase, but changes to the rules
>> don't seem to have
>> any effect. A simple example - if I add the rule:
>>
>> rule "TestRule"
>>         dialect "mvel"
>>         when
>>         then
>>                 System.out.println("Hello, world!");
>> end
>>
>> And start my application, I get:
>>
>> Firing all rules...
>> Hello, world!
>> All rules fired.
>>
>> As expected. If I then change the rule as follows:
>>
>> rule "TestRule"
>>         dialect "mvel"
>>         when
>>         then
>>                 System.out.println("I have changed!");
>> end
>>
>> I get this output (timestamps trimmed for readability):
>>
>> ResourceChangeScanner attempt to scan 1 resources
>> ResourceChangeScanner modified resource=[UrlResource
>> path='
>> http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMIE/v0.1
>> ']
>> :
>> 1277371031000 : 1277371254000
>> ResourceChangeNotification received ChangeSet notification
>> ResourceChangeScanner thread is waiting for 60
>> ResourceChangeNotification processing ChangeSet
>> ResourceChangeNotification ChangeSet modified resource=[UrlResource
>> path='
>> http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMIE/v0.1
>> ']
>> for listener=org.drools.agent.impl.KnowledgeAgentImpl at e2d0b2
>> KnowledgeAgent received ChangeSet changed notification
>> ResourceChangeNotification thread is waiting for queue update
>> KnowledgAgent applying ChangeSet
>> KnowledgeAgent ChangeSet requires KnowledgeBuilderKnowledgeAgent
>> rebuilding KnowledgeBase
>> using ChangeSet
>> KnowledgeAgent building resource=[UrlResource
>> path='
>> http://localhost:1337/drools-guvnor/org.drools.guvnor.Guvnor/package/ERMIE/v0.1
>> ']
>> KnowledgeAgent adding KnowledgeDefinitionsPackage ERMIE
>> KnowledgeAgent new KnowledgeBase now built and in use
>>
>> So, this makes it seem like everything has worked. However, if I
>> insert a new fact and
>> fire all rules...
>>
>> Inserting new fact...
>> Hello, World!
>>
>> So, it hasn't worked. What might I have done wrong?
>>
>>
>> -Stephen
>>
>> --
>> The University of Edinburgh is a charitable body, registered in
>> Scotland, with registration number SC005336.
>>
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>
>
>
> --
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> Esteban Aliverti
>



-- 
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.






More information about the rules-users mailing list