Mark, Thanks a lot ! Now I understand what it's all about. :) Oana. Mark Proctor <mproctor(a)codehaus.org&gt; wrote: default is Identity mode, its simpy the way it determines if the fact already exists in the working memory. fact.equals( fact ) is Equality mode fact == fact is Identity mode. Mark nicolae oana wrote: Dear all, I read in Drools manual about how Working Memory stores the asserted objects : Identity mode and Equality mode. But I'm not sure I properly understood the differences. In what concerns the Equality mode, the return of a FactHandle is done only when a different type of object is asserted?( a type that not exists yet in HashTable?). In the rest cases nothing is happening ? Best regards, Oana. --------------------------------- Need Mail bonding? Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers 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 --------------------------------- 8:00? 8:25? 8:40? Find a flick in no time with theYahoo! Search movie showtime shortcut.