On Tue, May 18, 2010 at 2:46 PM, ramram <ramram858(a)gmail.com&gt; wrote: Rules don't have "parameters" in the sense this word is used for procedures or methods. For flexibility at rule compile time, check out the rule template feature. To achieve dynamic adaption of values in pattern constraints you may use a "parameter fact", collecting such values as fields and write your rules accordingly. Yes, see the last sentence in my answer to 1. The term "user" does not apply to a Drools rule engine. How many rules? Asking this is similar to asking how many functions a C compiler can handle. Both is impossible to answer in this general form. It depends on the complexity of the rules; on the number (and size) of fact objects in Working Memory, and several other parameters. -W

Yes Yes, the most performant system will be if you have 0 rules. Yes, but I think you need to explain how/why you think you need to have 100,000 rules, why are you expecting to have 100,000 lines of rules definition, what are your rules trying to achieve. I can pretty much guaranteed you there is probably a better way to do what you are thinking. Thomas ************************************************************************************** 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 **************************************************************************************

Another Question regarding the Drools Templates. So if we have 100,000 of lines of data I will have 100,000 rules created as you have mentioned. Now my case I have for example an import to be done and on the import data will be inserted and the FireALLRules() will be called. My question is the following: I have done an import where there is 100,000 lines generating 100,000 rules. then I have done another import of 200,000 lines that will generate 200,000 rules what will be the total number of rules in the system 300,000 ?? or 200,000 ?? -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-Rule-Engine-tp... Sent from the Drools - User mailing list archive at Nabble.com.