Re: [rules-dev] Question about Metadata for Rules

Hello everybody, I have a simple question about annotations for rules. Is it possible to add metadata to a rule in the following or in a similar way? ------------------------------------------------------------------------------------------------ @CostumAnnotation(ruleType=RuleType.GOOD, otherInformation="This rule ist very important since ...") rule "A rule with metadata" when eval(true) then System.out.println(drools.getRule().getAnnotation(CostumAnnotation.class).toString()); end ------------------------------------------------------------------------------------------------ The annotatons should also be accesible within my java program otherwise it wouldn't be very useful at all. So for example I should be able to do the following Package[] packages = ruleBase.getPackages(); for (Package pack : packages) { Rule[] rules = pack.getRules(); for (Rule rule : rules) { rule.getAnnotation(CostumAnnotation.class).toString(); } } Why would I like to have such meta information along with my rules in one file? ... here it comes ... The result of firing all my rules is a list of all rules (whether they have been fired or not) with certain meta information. On the lhs of each rule I append an entry to that list with all the meta information. Depending on the inserted facts only a subset of all my rules fires and only a few rules will add entries to the list. My problem is that I want the rules that havn't been fired to appear in the list with all the meta information. A possible but not feasible solution would be to double all my rules. For each rule I could add second rule that fires if the original rule doesn't fire and this newly added rule inserts the entry in the list with all the meta information. Doubling the number of rules makes editing rules error prone and tedious. Another strategy could be to put all the meta information in a separate file. Via the rule name all meta information could be uniquely assigned to one rule. This strategy is also not very appealing since I have a lot of rules and editing rules again becomes error prone and tedious, since I have to keep the metadata file in sync. The by far best solution I can think of is to allow annotaions in the drl file as shown above. Any hints or suggestions about the stated problem are highly appreciated. Thanks in advance -- View this message in context: http://www.nabble.com/Question-about-Metadata-for-Rules-tp17300617p173006... Sent from the drools - dev mailing list archive at Nabble.com. _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev