Hi, In theory, you can do it both ways. Depending on your situation, you will have to assess which approach will be the best solution.
Regarding the fact that creation of a kbase takes some time, you will probably want to avoid doing it multiple times per transaction or, at least, cache them. Also, when your rules are part of a continupus flow, you probably want only 1 kbase. In your situation, mortgages, I assume your rules are following eachother with no or very little interaction from the user. In that case, I think one would normally use 1 knowledgebase. Theoretically, multiple knowledgebases should be used when dealing with completely different rulesets, with one ruleset not influencing the other (or execution of ruleset one happening in a totally different timeframe as to justify the use of another kbase). I hope this makes it clear. Regards, Frank ismaximum wrote: > > Hi > > I am new to Drools and just want to start developing our app with Drools. > I have some questions regarding KnowledgeBase instantiation. > > Can we create a single instance of KB across the application and use it to > create any stateful or stateless session? > In this case, do we need to add all the rules available in our application > or we need to create one instance for each set of rules? In other words, > consider we have many rules including mortgage calculation/ validation, > auditing process, interest rate calculation and many others, do we need to > create one instance of KB for each rule or just one KB and add all the > rules to it? > -- View this message in context: http://drools.46999.n3.nabble.com/How-to-use-KnowledgeBase-tp2819308p2819374.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
