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

[Wolfgang Laun]

See below.

On 20/08/2012, Suvek <suvek.shah at gmail.com> wrote:
> 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?

How does AddressType relate to addresses? Are all addresses of
different types or not?


>
> 2 - is the this statement correct ? ($requiredAddressTypes : List() from [
> AddressType.BUSINESS, AddressType.FOREIGN_BUSINESS ])

No, it violates the DRL syntax. See the Drools Expert Manual for
examples of how to use "from".

But I don't think you'll need "from", unless you have oversimplified.

-W

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