I have used agenda-group for simple processing step sequences, and it was quite sufficient. You can switch groups from the Java application (between fireAllRules()) or even from a consequence.
In any case, I think of salience as a "small-grained" sequencing technique, akin to the "goto considered harmful" if used for overall flow control. -W On 29 December 2010 15:13, AleBu <[email protected]> wrote: > > Hi all, > I have some complex rule execution scenario which consists of several steps > where different groups of rules must be executed. These steps are: 'Init > Data', 'Validate Integrity', 'Stop Execution if any integrity errors found' > and 'Validate Business Logic'. Originally I implemented it by assigning > specific salience to specify an order of rules, like 'Init Data' rules has > biggest salience, and 'Validate Business Logic' rules has the smallest. > I am wondering, is designing separate rule flow (very simple) is a valid > approach and wouldyoy recomend it? It should look like: > 'Start' -> 'Init Data' -> 'Validate Integrity' -> 'Stop Execution if any > integrity errors found' -> 'Validate Business Logic' -> 'End'. > Also, I tried to do it by specifing 'ruleflow-group' for each rule and > creating rule-flow, but got an error 'Unknown process ID' while executing. > The code was very simple - 1st I added rule-flow file as resource to > KnowledgeBuilders DRF resource with: > Resource flowFileRes = ResourceFactory.newFileResource( > flowFile ); > knowledgeBuilder.add( flowFileRes, ResourceType.DRF ); > knowledgeBuilder.hasErrors() is false at this point, so I assume that > process was added sucessfully. > Then I am executed: > session.startProcess( MAIN_FLOW_ID ); > session.fireAllRules(); > MAIN_FLOW_ID constist of package defined in rule-flow file and rule-flow-ID > from the same file (<package>.<flow-ID>). > But fireAllRules() claims that no such process can be found (Unknown > process > ID). > Documentation is very weak and it is the only information I found about > executing processes, so perhaps I miss something, but mailing list seems > like the only place to find more info. > > > -- > View this message in context: > http://drools-java-rules-engine.46999.n3.nabble.com/Ordering-rules-execution-ruleflow-group-or-salience-tp2162935p2162935.html > Sent from the Drools - User mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users >
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