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

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(a)gmail.com&gt; wrote: