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

I tried looking for similar posts but could not find any that fits the requirements. Really speaking this is a 2 part question. What I need to do is compare 2 lists and ensure that all the fields inside the reference list are present in passed in list. following is the simplified version of test that I want to perform... $requiredAddressTypes : List() from [ AddressType.BUSINESS, AddressType.FOREIGN_BUSINESS ] $taxpayer : Taxpayer(taxpayerType == TaxpayerType.FOREIGN_BUISINESS && addresses.size > 0, $addresses : addresses) 1 - Based on the taxpayer type I need to ensure that ALL the requiredAddressTypes must be present, how can I achieve this? 2 - is the this statement correct ? ($requiredAddressTypes : List() from [ AddressType.BUSINESS, AddressType.FOREIGN_BUSINESS ]) -- View this message in context: http://drools.46999.n3.nabble.com/All-the-values-from-one-list-must-be-pr... Sent from the Drools: User forum mailing list archive at Nabble.com.