Drools: can we add/amends rules at runtime

Question

can we add/amends rules (.drl or decision table) at runtime in drools?

For example I created a simple decision table rule, this rule worked fined, however any change in decision table was not reflected in rule evaluation at runtime until the jvm was restarted.

Tried this re-creating the KieSession

Answer 1

was able to do this by creating new KieSession instance as below:

This was done with drools version: 8.32.0 java 11

KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder(); builder.add(ResourceFactory.newFileResource(), ResourceType.DTABLE); InternalKnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(); knowledgeBase.addPackages(builder.getKnowledgePackages()); knowledgeBase.newKieSession(); =====================

the new session was created whenever there was any amend made in the rule