Re: [rules-users] new to Drools: modeling issues

In my experience no-loop is pretty much worthless as it only prevents the most trivial type of loops (a rule reactivating itself). It provides no help for the most common type of loop where multiple rules modify the same object and reactivate each other. From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Michael Anstis Sent: 06 December 2010 10:54 To: Rules Users List Subject: Re: [rules-users] new to Drools: modeling issues Glad you're reading the documents - you'd be surprised how many people asking questions do not! You can put off DSL until you're happy your rules are working, off course - in fact, IMO, it's easier to "debug" rules without the additional abstraction. You're first rule looks better - although I'd still be inclined to look at no-loop rather than the check yourself (what if you need the new value to be dynamic; i.e. not just statically "value"? Your rules would become cumbersome). The second rule does not associate StringHolder to any particular Child instance (although easily added); so you'd get the cross-product of StringHolders and Child facts; not I suspect what you'd want. Cheers, Mike On 6 December 2010 10:36, Gabor Szokoli <szocske@gmail.com<mailto:szocske@gmail.com>> wrote: Thanks for the instant response! 2010/12/6 Michael Anstis <michael.anstis@gmail.com<mailto:michael.anstis@gmail.com>>: I'm reading the documentation thoroughly of course, but it seems to be centered about using the system and writing rules. Which is how it should be, don't get me wrong :-) I'm just hoping for some spoilers like "Section X will detail how java object are mapped to WMEs." Can I put off the DSL part for later, and consider it just an extra layer of rule file parsing for now? Do I lose the graphical on-line editor features of Guvnor (which I admittedly have not looked into yet, just salivated over some screenshots.) if I make a DSL? Other than the attention-whoring double take in nomenclature, does that rule pattern look OK? I'll stick with cheese in the future :-) Thanks Again! Gabor Szokoli _______________________________________________ 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 **************************************************************************************