Hi, I had a very basic doubt. 'Rule Base' and 'Knowledge Base' are two different concepts (may be from implementation point of view )? I got this doubt when I was going through section '1.4.7.2. Drools execution server' of drools guvnor (v5.0) where it was written like : The drools execution server (drools-server) module is a war which you can deploy to execute "knowledgebases (rulebases)" remotely for any sort of client application The thing is that , I have created Knowledge base from changeset.xml as follows : kagent = KnowledgeAgentFactory.newKnowledgeAgent( "MyRuleAgent" ); kagent.applyChangeSet( ResourceFactory.newUrlResource( changesetUrl ) ); kbase = kagent.getKnowledgeBase(); Now if I wish to get Rule Base corresponding to my changeset(or rather my DRL file) using 'this kbase object' , how can I do that ? Thanks, Swapnil Sawant This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ______________________________________________________________________ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

We are upgrading Drools Core from 5.1.1 to 5.3.1 and stilling using the old RuleBase API, but we got Null Pointer Exception when running rules: ----------------- Caused by: [Error: wm.startProcess($phase.id): null] [Near : {... WorkingMemory wm = drools.getW ....}] ... Caused by: java.lang.NullPointerException at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1073) ----------------- where our DRL file has content: ----------------- rule "Set ruleflow" salience 10 when $phase : Phase() then WorkingMemory wm = drools.getWorkingMemory(); wm.startProcess($phase.id); end ----------------- Do we have to switch to KnlowledgeBase API or sth wrong with our rule? ( it worked fine with 5.1.1) -- View this message in context: http://drools.46999.n3.nabble.com/Difference-between-Rule-Base-and-Knowle... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users