I don't see the initialisation of fields modelGroup and region in the Params fact. They aren't int, but Integer, and so not zero by default. -W
On Fri, Dec 4, 2009 at 10:25 PM, Torfox <[email protected]> wrote: > > Hi, > > I couldn't find an solution to a problem I'm struggling with for many hours. > > Generally I'm trying to implement sequential mode rules. I have applied > salience parameters to order the rules, but the engine is not executing > these rules in that order. > > I use drools 5.0.1 in sequential mode, stateless session. > > As far as I understand the documentation, in this mode the rules should be > fired in accordance to the salience attribute. > > RuleBaseConfiguration conf = new RuleBaseConfiguration(); > conf.setSequential( true); > KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase( > conf); > session = knowledgeBase.newStatelessKnowledgeSession(); > ... > > The following code snapshot proves that the execution order totally ignores > salience - "rule2" is fired prior to the "rule1" causing > NullPointerException since the Params is initiated in "rule1". > > package com.kaguar.pzu; > > import java.util.*; > import com.kaguar.entities.*; > > global java.util.Set output; > > declare Params > version : String > modelGroup : Integer > region : Integer > end > > rule "rule1" > salience 1000 > when > $c: Customer() > then > Params p = new Params(); > p.setVersion( "1.0"); > insert( p); > output.add( p); > $c.getPolicy().setParams( p); > System.out.println( "Initiation complete"); > end > > > rule "rule2" > salience 0 > when > exists Params() > $c: Customer( vehicle.age == 2, policy.params.modelGroup == > 1, policy.params.region == 1) > then > System.out.println( "test"); > end > > Please help!!! > > -- > View this message in context: > http://n3.nabble.com/Sequential-mode-help-tp68511p68511.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 > _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
