Is it possible to set the rule flow in my rule base before adding rule packages : ruleBase = RuleBaseFactory.newRuleBase(); org.drools.compiler.ProcessBuilder processBuilder = new ProcessBuilder(new PackageBuilder()); processBuilder.addProcessFromFile(ruleFlow); ruleBase.addProcess(processBuilder.getProcesses()[0]); thanks -- View this message in context: http://www.nabble.com/adding-process-to-an-empty-rule-base-tf4157978.html... Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

I try this: ... InputStream stream = getClass().getResourceAsStream("/rules/demoRuleFlow.rfm"); Reader ruleFlowReader = new InputStreamReader(stream); ruleEngine.setRuleFlow(ruleFlowReader); .. PackageBuilder builder = new PackageBuilder(); builder.addRuleFlow(ruleFlow); Package pkgRuleFlow = builder.getPackage(); ruleBase.addPackage(pkgRuleFlow); but I have this error: Caused by: java.lang.NoSuchMethodError: org.mvel.optimizers.OptimizerFactory.setDefaultOptimizer(Ljava/lang/String;)V at org.drools.rule.builder.dialect.mvel.MVELDialect.init(MVELDialect.java:132) at org.drools.compiler.DialectRegistry.initAll(DialectRegistry.java:49) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:139) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:88) Kris Verlaenen wrote: > > Yes, that is possible, but you should also add the (generated) package of > your PackageBuilder. > > But this process is actually much simpler when using the ProcessBuilder > exclusively. > It should look something like this: > > PackageBuilder builder = new PackageBuilder(); > // add your rules (if any) > builder.addPackageFromDrl( ... ); > // add your processes (if any) > builder.addRuleFlow( ... ); > // add Package to ruleBase > Package pkg = builder.getPackage(); // this includes all the rules and > processes > ruleBase.addPackage( pkg ); > > Kris > > ----- Original Message ----- > From: "hypnosat7" <ablarbi(a)yahoo.fr&gt; > To: <rules-users(a)lists.jboss.org&gt; > Sent: Friday, July 27, 2007 3:59 PM > Subject: [rules-users] adding process to an empty rule base > > >> >> Is it possible to set the rule flow in my rule base before adding rule >> packages : >> >> ruleBase = RuleBaseFactory.newRuleBase(); >> org.drools.compiler.ProcessBuilder processBuilder = new >> ProcessBuilder(new >> PackageBuilder()); >> processBuilder.addProcessFromFile(ruleFlow); >> ruleBase.addProcess(processBuilder.getProcesses()[0]); >> >> thanks >> -- >> View this message in context: >> http://www.nabble.com/adding-process-to-an-empty-rule-base-tf4157978.html... >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/adding-process-to-an-empty-rule-base-tf4157978.html... Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

thanks, it works but now I have this : Caused by: java.lang.NullPointerException at org.drools.compiler.PackageBuilder.addRuleFlowsToPackage(PackageBuilder.java:469) at org.drools.compiler.PackageBuilder.getPackage(PackageBuilder.java:449) Kris Verlaenen wrote: > > This error is caused by a mismatch between the version of the mvel > library > you are using and the version that is expected by drools. > Drools 4.0.0 is expecting mvel14-1.2rc1.jar. Previous versions of drools > are probably based on older versions of mvel. > Might also be caused by having multiple versions of mvel in your > classpath. > > Kris > > ----- Original Message ----- > From: "hypnosat7" <ablarbi(a)yahoo.fr&gt; > To: <rules-users(a)lists.jboss.org&gt; > Sent: Friday, July 27, 2007 5:30 PM > Subject: Re: [rules-users] adding process to an empty rule base > > >> >> >> I try this: >> ... >> InputStream stream = >> getClass().getResourceAsStream("/rules/demoRuleFlow.rfm"); >> Reader ruleFlowReader = new InputStreamReader(stream); >> ruleEngine.setRuleFlow(ruleFlowReader); >> .. >> >> PackageBuilder builder = new PackageBuilder(); >> builder.addRuleFlow(ruleFlow); >> Package pkgRuleFlow = builder.getPackage(); >> ruleBase.addPackage(pkgRuleFlow); >> >> but I have this error: >> Caused by: java.lang.NoSuchMethodError: >> org.mvel.optimizers.OptimizerFactory.setDefaultOptimizer(Ljava/lang/String;)V >> at >> org.drools.rule.builder.dialect.mvel.MVELDialect.init(MVELDialect.java:132) >> at org.drools.compiler.DialectRegistry.initAll(DialectRegistry.java:49) >> at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:139) >> at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:88) >> >> >> >> Kris Verlaenen wrote: >>> >>> Yes, that is possible, but you should also add the (generated) package >>> of >>> your PackageBuilder. >>> >>> But this process is actually much simpler when using the ProcessBuilder >>> exclusively. >>> It should look something like this: >>> >>> PackageBuilder builder = new PackageBuilder(); >>> // add your rules (if any) >>> builder.addPackageFromDrl( ... ); >>> // add your processes (if any) >>> builder.addRuleFlow( ... ); >>> // add Package to ruleBase >>> Package pkg = builder.getPackage(); // this includes all the rules and >>> processes >>> ruleBase.addPackage( pkg ); >>> >>> Kris >>> >>> ----- Original Message ----- >>> From: "hypnosat7" <ablarbi(a)yahoo.fr&gt; >>> To: <rules-users(a)lists.jboss.org&gt; >>> Sent: Friday, July 27, 2007 3:59 PM >>> Subject: [rules-users] adding process to an empty rule base >>> >>> >>>> >>>> Is it possible to set the rule flow in my rule base before adding rule >>>> packages : >>>> >>>> ruleBase = RuleBaseFactory.newRuleBase(); >>>> org.drools.compiler.ProcessBuilder processBuilder = new >>>> ProcessBuilder(new >>>> PackageBuilder()); >>>> processBuilder.addProcessFromFile(ruleFlow); >>>> ruleBase.addProcess(processBuilder.getProcesses()[0]); >>>> >>>> thanks >>>> -- >>>> View this message in context: >>>> http://www.nabble.com/adding-process-to-an-empty-rule-base-tf4157978.html... >>>> Sent from the drools - user mailing list archive at Nabble.com. >>>> >>>> _______________________________________________ >>>> rules-users mailing list >>>> rules-users(a)lists.jboss.org >>>> https://lists.jboss.org/mailman/listinfo/rules-users >>> >>> _______________________________________________ >>> rules-users mailing list >>> rules-users(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/rules-users >>> >>> >> >> -- >> View this message in context: >> http://www.nabble.com/adding-process-to-an-empty-rule-base-tf4157978.html... >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >