[rules-users] Check if fact is subset of items in the rule

[Michael Anstis]

Thanks, please provide a specific example rule too.

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On 12 October 2010 22:18, Kumar Pandey <kumar.pandey at gmail.com> wrote:

> Michale
>   Thanks for the response.
> Here's the link for the thread .
>
>
> http://drools-java-rules-engine.46999.n3.nabble.com/Check-if-fact-is-subset-of-items-in-the-rule-td1680013.html#a1680013
>
> and the original about matching strings in two arrays.
>
> http://drools-java-rules-engine.46999.n3.nabble.com/Matching-strings-in-two-arrays-td1602511.html#a1602511
>
>
> My use case is that I could have hundreds of rule and each rule could have
> its own set of strings.
> A fact object is run through these rules to see which ones are fired.
> One of the condition to check is that the a list in the fact is not a
> subset of list in the rule.
> That is fire the rule only if list in fact is not a subset of list in rule.
>
> Thanks
> Kumar
>
>
> On Tue, Oct 12, 2010 at 12:38 PM, Michael Anstis <michael.anstis at gmail.com
> > wrote:
>
>> OK, I admit I don't have the original thread anymore.
>>
>> If I am not wrong (which is always a possibility) for Wolfgang's operator
>> to work you'd need to externalise the superset from the rule into
>> WorkingMemory. You could have a rule with higher salience construct the
>> superset WM fact.
>>
>> If you don't mind re-posting or providing a link to the complete thread
>> (on Nabble or somewhere) I'll happily try to help further.
>>
>> On 12 October 2010 17:23, <kumar.pandey at gmail.com> wrote:
>>
>>> <quote author='Michael Anstis-2'>
>>>
>>> Wolfgang gave a great solution.
>>> </quote>
>>> Don't know if I'm missing something obvious here.  I have a superset in
>>> the rule itself. Each rule has a superset list. In this case how would I use
>>> Wolfgang's solution. Its comparing through two arrays in runtime. I have not
>>> been able to construct an array construct with specific values in the rule
>>> itself.
>>>
>>
>>
>
>
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