[rules-users] How to retrieve the Rule names in the drools rule file

[Amila Silva]

Hi Laun,
  Yes now it works fine thanks.
  earlier case it was like

rule "Test Exists" enabled false
 @Purpose ("   WORD ")
    when

after removing "enabled false" tag it works fine.


Amila Silva


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On Tue, Jun 30, 2009 at 5:02 PM, Wolfgang Laun <wolfgang.laun at gmail.com>wrote:

> Notice that the metadata annotations must precede 'when', not 'then'.
>
> rule x
>   @Purpose( "purpose of x" )
> when
>   ...
> then
>   ...
> end
>
> You may use more than one such metadata, e.g.,
>
>  rule x
>   @Purpose( "purpose of x" )
>   @Rulename( "this rule is called 'x'" )
> when
>   ...
>
> -W
>
>
>
> -W
>
>
> On 6/30/09, Amila Silva <amilac at hsenidmobile.com> wrote:
>>
>> hi Laun,
>>    I tries with your solutions but i couldn't find the way to configure
>> the meta - data part in rule file to read.
>>    I came across with following issues when trying to read it from a given
>> code.
>>
>>   [12,2]: [ERR 102] Line 12:2 mismatched input 'AT' expecting 'then' in
>> rule "create new Instance"
>>    Exception in thread "main" java.lang.IllegalArgumentException: Could
>> not parse knowledge.
>>
>>  i think this might be a issue with  a @ sign in the rule file but i think
>> i this kinda of annotations will help to specify the
>>  main rule name. Or is there any way to identify or filter out the main
>> rule name from file.
>>
>> BTW your this solution help me a lot.
>> thanks
>>
>>
>>
>>
>>
>>
>> On Tue, Jun 30, 2009 at 2:44 PM, Wolfgang Laun <wolfgang.laun at gmail.com>wrote:
>>
>>> You might use the API to retrieve all rules in your KnowledgeBase
>>>
>>> KnowledgeBase kBase = ...;
>>>
>>> for( KnowledgePackage kp: kBase.getKnowledgePackages() ){
>>>       for( Rule r: kp.getRules() ){
>>>             String name = r.getName();
>>>             String purpose = r.getMetaAttribute( "Purpose" );  // or
>>> similar - see below
>>>             System.out.println( "Rule " + name + ", purpose: " + purpose
>>> );
>>>       }
>>> }
>>>
>>> Rule names may not provide sufficient information. You could add
>>> arbitrary metadata to your rules, e.g.,
>>>
>>> rule "pqx"
>>>    @Purpose( "locates very interesting facts" )
>>>    when
>>>    ...
>>> end
>>>
>>> -W
>>>
>>>
>>>
>>> 2009/6/30 Amila Silva <amilac at hsenidmobile.com>
>>>
>>>>
>>>> hi everyone,
>>>>    I have requirement like to retrieve the RULE names in a given rule
>>>> files. and also is there a way to map a rule names from a multiple rule
>>>> files.
>>>>    i want to load the or show the available rules and system user to
>>>> select the required rule for his program.
>>>>    let me know the possible way of doing this.
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>> Regrads,
>>>>
>>>> Amila Silva,
>>>> Associate Software Engineer
>>>>
>>>> hSenid Mobile Solutions
>>>>
>>>> Phone :
>>>> +94-77-9983894
>>>> Fax     :
>>>> +94-11-2673 845
>>>>
>>>> Web:
>>>> http://www.hSenid.com <http://www.hsenid.com/>
>>>>
>>>> Make it Happen
>>>>
>>>>
>>>> http://www.hSenidMobile.com <http://www.hsenidmobile.com/>
>>>>
>>>> Enabling the Mobile World
>>>>
>>>>
>>>> Disclaimer: This email and any files transmitted with it are
>>>> confidential and intended solely for the use of the individual or entity to
>>>> which they are addressed. The content and opinions contained in this email
>>>> are not necessarily those of hSenid Software International. If you have
>>>> received this email in error please contact the sender.
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>> --
>>
>>
>


-- 
Thanks,
Regrads,

Amila Silva,
Associate Software Engineer

hSenid Mobile Solutions

Phone :
+94-77-9983894
Fax     :
+94-11-2673 845

Web:
http://www.hSenid.com

Make it Happen


http://www.hSenidMobile.com

Enabling the Mobile World


Disclaimer: This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to which they
are addressed. The content and opinions contained in this email are not
necessarily those of hSenid Software International. If you have received
this email in error please contact the sender.
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