Re: [rules-users] modify and update is not working in the rule file

*DISCLAIMER: PLEASE NOTICE THAT THIS IS NOT RECOMMENDED, AND IN ANY CASE SHOULD BE DONE WITH ***EXTREME*** CARE.* This said, you need to create a KnowledgeBase passing a RuleBaseConfiguration. Take a look at RuleBaseConfiguration.getComponentFactory(), which returns a ReteooComponentFactory. This class controls the sub-factories used to build parts of the RETE network. In particular, you will need to hack the NodeFactory (guess what it does :)) So, in reverse order: - Create a KnowledgeBase using a custom configuration /KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase( rbc );/ - When you create the configuration, do not use the interface, but the actual implementation /RuleBaseConfiguration rbc = (RuleBaseConfiguration) KnowledgeBaseFactory.newKnowledgeBaseConfiguration();/ - Set a custom NodeFactory in the configuration /rbc.getComponentFactory().setNodeFactoryProvider( myNodeFactory );/ - The nodefactory should extend the appropriate methods and returned customized nodes. For example, to hack the alpha nodes: /org.drools.reteoo.builder.NodeFactory myNodeFactory = new DefaultNodeFactory() { public AlphaNode buildAlphaNode(int id, AlphaNodeFieldConstraint constraint, ObjectSource objectSource, BuildContext context) { return new MyAlphaNode( /* args from super constructor here */ ); } };/ - Your custom nodes should add the desired behaviour. For example, the custom AlphaNode could override the "assertObject" method ( see : https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/jav... ) / ... if ( isAllowed(...) ) { ... } else { // not present in the original // here, a particular object failed to satisfy a given constraint } / -- View this message in context: http://drools.46999.n3.nabble.com/modify-and-update-is-not-working-in-the... Sent from the Drools: User forum mailing list archive at Nabble.com.