[rules-users] [guvnor] How to use a rule in a java application

[Mario Viertel]

Hi Mike,

thanks for the information. No, I didn't know the Expert documentation.

Regards,
Mario


Am 20.04.2011 14:09, schrieb Michael Anstis:
> Hi,
>
> Guvnor is an authoring and repository environment not a runtime environment.
>
> Please read about KnowledgeBuilder and its related "addResource" methods
> together with the ResourceType.PKG. You can also look at using
> KnowledgeAgent but for now an understanding of KnowledgeBuilder will
> suffice. I also recommend you read about rule invocation, as your example of
> how you expect operation "rules.execute" suggests you have not read the
> "Expert" documentation.
>
> With kind regards,
>
> Mike
>
> On 20 April 2011 12:39, Mario Viertel<Mario.Viertel at medav.de>  wrote:
>
>> Hi all,
>>
>> I am new in Guvnor and have a lot of questions.
>> I have created a decision table with the Guvnor web app. I have also
>> created some test. All seems to be fine.
>>
>> Now I want to use the rules in a web application. Unfortunately Guvnor
>> doesn't provide a web service interface so I must develop an own web
>> service to deal with the rules. But thats not so easy ...
>>
>> In the Guvnor documentation I can see how to create KnowledgeBases and
>> builders and how to fire rules. But I cannot see how to receive rule
>> results.
>>
>> Example:
>>
>> The decision table looks similar like this:
>>
>> rule 1 "under age"
>> if person.age<  18 then "under age"
>>
>> rule 2 "pensioner female"
>> if person.age>  64 and person.gender == "female" then "pensioner"
>>
>> rule 3 "pensioner male"
>> if person.age>  67 and person.gender == "male" then "pensioner"
>>
>> rule 4 "full age"
>> * then "full age"
>>
>>
>> In my java application I create a person object:
>>
>> Person p = new Person();
>> p.setBirthday(...);
>> p.setGender(...);
>>
>> Now I miss a method in the Guvnor api to exectute the rules and receive
>> the result like this:
>>
>> Person result = (Person) rules.execute(p);
>>
>> Can somebody explain how to execute a rule and receive the result.
>>
>> Thanks in Advance
>> Mario Viertel
>> Germany
>> _______________________________________________
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>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>
>
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-- 

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