Hi, I have set of rules defined for Address validation. How do I reuse these rules when the Taxpayer object is passed in as fact which contains Address as one of the field (list to be precise)? Do I somehow need to extract and add addresses to working memory within the drl file? thanks S. -- View this message in context: http://drools.46999.n3.nabble.com/Re-usability-of-rules-tp4019580.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Why not use when TaxPayer( $addrList : addressList ) Address( zipCode == null) from $addrList then // report missing zip code because: if it is null, it is not invalid - just missing ;-) end -W On 05/09/2012, Michael Anstis <michael.anstis(a)gmail.com&gt; wrote: > If your rules look something like this:- > > when > Address( zipCode == null ) > then > //Report an invalid zipCode > end > > You will need to extract the Address from the TaxPayer:- > > when > TaxPayer( $a : address ) > then > insert( $a ); > end > > You will need to consider how to correlate the Address with the TaxPayer > (to know which TaxPayer has an invalid Address). > > On 5 September 2012 09:50, Suvek <suvek.shah(a)gmail.com&gt; wrote: > >> Hi, >> >> I have set of rules defined for Address validation. >> How do I reuse these rules when the Taxpayer object is passed in as fact >> which contains Address as one of the field (list to be precise)? >> Do I somehow need to extract and add addresses to working memory within >> the >> drl file? >> >> thanks >> S. >> >> >> >> >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/Re-usability-of-rules-tp4019580.html >> Sent from the Drools: User forum mailing list archive at Nabble.com. >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

On 05/09/2012, Michael Anstis <michael.anstis(a)gmail.com&gt; wrote: > I assume, the OP has a bunch of rules that validate Addresses. > > The Addresses could be on TaxPayer, NonTaxPayer, Payee, Employee etc etc. This would require rules for extracting Address(es) from NonTaxPayer, Payee, Employee etc etc. > > I also assume the OP did not want to repeat the Address validation in rules > containing the source of the Address. In that case, all the -ayers and ayees should have a common interface, e.g., Addressable and then you have one rule to fix them all. -W > > As with all assumptions I might be wrong :) > > Perhaps the OP can provide more detail. > > On 5 September 2012 10:05, Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; wrote: > >> Why not use >> >> when >> TaxPayer( $addrList : addressList ) >> Address( zipCode == null) from $addrList >> then >> // report missing zip code because: if it is null, it is not >> invalid - just missing ;-) >> end >> >> -W >> >> On 05/09/2012, Michael Anstis <michael.anstis(a)gmail.com&gt; wrote: >> > If your rules look something like this:- >> > >> > when >> > Address( zipCode == null ) >> > then >> > //Report an invalid zipCode >> > end >> > >> > You will need to extract the Address from the TaxPayer:- >> > >> > when >> > TaxPayer( $a : address ) >> > then >> > insert( $a ); >> > end >> > >> > You will need to consider how to correlate the Address with the >> > TaxPayer >> > (to know which TaxPayer has an invalid Address). >> > >> > On 5 September 2012 09:50, Suvek <suvek.shah(a)gmail.com&gt; wrote: >> > >> >> Hi, >> >> >> >> I have set of rules defined for Address validation. >> >> How do I reuse these rules when the Taxpayer object is passed in as >> >> fact >> >> which contains Address as one of the field (list to be precise)? >> >> Do I somehow need to extract and add addresses to working memory >> >> within >> >> the >> >> drl file? >> >> >> >> thanks >> >> S. >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> View this message in context: >> >> http://drools.46999.n3.nabble.com/Re-usability-of-rules-tp4019580.html >> >> Sent from the Drools: User forum mailing list archive at Nabble.com. >> >> _______________________________________________ >> >> rules-users mailing list >> >> rules-users(a)lists.jboss.org >> >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> > >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Thanks Manstis and laune!! Manstis your assumptions are right, I have various places from where the address will be validated. Moreover this pattern is going to repeat on various levels. So to explain when the tax return is filed, TaxReturn needs validating, also the TaxReturn will have 1..* TaxPayer so the tax payers would be validated using Taxpayer rules and Addresses associated with the TaxPayer also get validated. In some of the cases there could be 5 levels. Depending on where the rules are being called from all the rules must be validated for the passed in object + all the associated child objects. Hope my approach is correct to have separate rules for each level and reuse the child validation if available. I will try out the suggested solution and get back with the results. thanks again S. -- View this message in context: http://drools.46999.n3.nabble.com/Re-usability-of-rules-tp4019580p4019588... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

All the information is coming from database or the user inputs.

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Database structure is kind of fixed, is being used by various systems. Just starting off with drools validation so have flexibility in terms of loading facts in rules.

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