How complex are the blacklist rules that you are planning to have? >From what you have described it sounds like it is just substring/startswith >matches? If this is the case then you may be better just to query lucene or the database directly as you'll result in a very flat extremely wide graph that drools isn't going to be able to optimize at all - it will basically just iterate over every string doing the string comparison. Lucene/the database are likely to be much more optimized and efficient for this.
If on the other hand your blacklist logic is much more complicated, taking into account multiple criteria such as username, time of day, source ip address, phase of the moon etc then drools may be easier to optimize development speed and maintainance,. Thomas > -----Original Message----- > From: rules-users-boun...@lists.jboss.org [mailto:rules-users- > boun...@lists.jboss.org] On Behalf Of lansyj > Sent: 05 July 2011 09:39 > To: rules-users@lists.jboss.org > Subject: [rules-users] Using Enumeration for long lists > > Hi, > > We are planning to use Drools for a Blacklist validation logic which requires > us > to manage very long list (could be tens of thousands of IDs). > Can we use the native Drools enumeration for this? Would this be an optimal > implementation? > > The other option we were thinking of was to have a list managed separately > in our core application and have in lucene indexed such that Drools rule > checks against the index. But, as you can see, it creates a lot of development > as well as maintenance overhead. > > Thanks in advance for any tips on this topic. > > Best Regard > > -lj > > -- > View this message in context: http://drools.46999.n3.nabble.com/Using- > Enumeration-for-long-lists-tp3140051p3140051.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > 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 postmas...@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 ************************************************************************************** _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
