[rules-users] All the values from one list must be present in other

[Wolfgang Laun]

Here's how I'd do it:

rule "missing address type"
when
    $tpType: TaxpayerType( $addressTypes: addressTypes )
    Taxpayer( $name: name, taxpayerType == $tpType, $addrs: addresses )
    accumulate( Address( $addrType: addressType ) from $addrs,
                $addrTypeSet: collectSet( $addrType ) )
    eval( ! $addrTypeSet.containsAll( $addressTypes ) )
then
    System.out.println( $name + " is not OK" );
end

Enum TaxpayerType has a property addressTypes of type Set (actually an
EnumSet) containing the set of required address types.

The "accumulate" collects, in set $addrTypeSet all actually available
AddressType values from the taxpayer's addresses.

-W







On 20/08/2012, Suvek <suvek.shah at gmail.com> wrote:
> Thanks for your quick reply...
>
> AddressType is Enum and have around 15 odd values, based on the taxpayer
> type some of the AddressTypes would be selected...
>
> Addresses is list of Address and addressType is one of the field under
> Address. All the addresses may be of same or different types (say a
> taxpayer
> can have two houses )
>
>
>
>
>
> --
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