Re: [rules-users] For loop inside a modify block problem

From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Mark Proctor Sent: 11 January 2012 15:27 To: rules-users(a)lists.jboss.org Subject: Re: [rules-users] For loop inside a modify block problem Why no braces after SomeBusinessLogic? Also your logic is wrong there. Item is not a collection so your for loop is repeating the same action over and over again for the same data. [Swindells, Thomas] It does look like that but it depends what the action is. Perhaps it is integrating with a rubbish stock system which can only remove one item at a time, to remove n identical items you have to call it n times. Mark On 11/01/2012 09:27, Martin A wrote: Hi, Davide, Here is how my rule looks like : when $item : Item(param1 != 0, param2 == 0, !(this instanceof SpecialItem)) $gsc : SomeBusinessLogic then $gsc.doSomething($item.id<http://item.id/>); for (int i = 0; i < $item.quantity; i++) { $gsc.doSomethingElse($item.id<http://item.id/>); } update($gsc); end The above snippet throws an error @ i < $item.quantity, and says 'no such identifier $item'... I can't figure out what might be causing this. Thanks On Tue, Jan 10, 2012 at 10:08 PM, Davide Sottara <dsotty@gmail.com<mailto:dsotty@gmail.com>> wrote: Did you remember to bind $item to some expression in the LHS ? Maybe you just called that "item" without the $ :) Davide (the original "modify" syntax is still wrong anyway) -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-For-loop-inside-a-modify-bl... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users ________________________________ ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster(a)nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 **************************************************************************************