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

[Michael Anstis]

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?
>
>
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