[rules-users] Looping through a vector object in a rule

[Michael Anstis]

I assumed claimHistory is not related to Claim in your example, if it is
however you can also do this:-

when
    $c : Claim( $a : aField )
    $ch : ClaimHistory( aField == $a ) from $c.claimHistory
then
    ...
end

Or, assuming bidirectional references:-

when
    $c : Claim( $a : aField )
    $ch : ClaimHistory( claim == $c, aField == $a )
then
    ...
end


On 4 May 2011 10:27, Michael Anstis <michael.anstis at gmail.com> wrote:

> You'd be better off inserting the individual claim history objects:-
>
> when
>     $c : Claim( $a : aField )
>     $ch : ClaimHistory( aField == $a )
> then
>     ...
> end
>
> IIRC you can achieve the same by inserting the Vector by providing another
> rule to expand it first:-
>
> Vector<ClaimHistory> claimHistory = getClaimHistory();
> ksession.insert( claimHistory );
>
> salience <A value hIgher than your other rules>
> when
>     $v : Vector( )
>     $ch : ClaimHistory( ) from $v
> then
>     insert( $ch );
> end
>
> You can also achieve the latter example using a global.
>
> With kind regards,
>
> Mike
>
>
> On 4 May 2011 09:17, sdinoo <sdinoo at gmail.com> wrote:
>
>> I am new to drools
>>
>> I am inserting into a ksession a single claim POJO + vector of previous
>> claims
>> Like this
>>
>>                        ksession.insert(claim); // single claim
>>                        ksession.insert(historyClaims); // vector of claims
>>                        ksession.startProcess("com.dur.claim");
>>                        ksession.fireAllRules();
>>
>> I want to compare single claim variable values with all the claims in the
>> vector
>> how do I loop through the vector objects and compare the values in the
>> Rule
>> (.drl) file?
>>
>> Can someone help me out?
>>
>>
>> --
>> View this message in context:
>> http://drools.46999.n3.nabble.com/Looping-through-a-vector-object-in-a-rule-tp2897872p2897872.html
>> Sent from the Drools: User forum mailing list archive at Nabble.com.
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>
>
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