@Wolfgang, maybe I need to update the documentation to explicitly inform about this behavior :). The agent doesn't make anything special to sync the sessions with the kbase. If you add a rule by hand to an existing kbase, all the session from this kbase will automatically detect the changes. Now I'm working in a helper class to create and apply change-set in a programatic way. So if you don't want kbases to be automatically modified when a resource chages, you can use this helper class.
Best Regards, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2011/4/20 Wolfgang Laun <[email protected]> > 2011/4/20 Esteban Aliverti <[email protected]> > >> @Wolfgang: if you are using drools.agent.newInstance=true (the default >> configuration), then whenever a change-set is applied, either because you >> explicitly force the agent to do so, or because a monitored resource >> changes, the kbase inside the agent is thrown away an a new kbase is >> created. So you need to get the kbase from the agent and retrieve a fresh >> session from it. >> You can confirm this behavior in this set of tests: >> https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/agent/KnowledgeAgentIncrementalChangeSetTest.java >> >> But, if you are using drools.agent.newInstance=false the internal kbase >> (and each stateful session you got from it) is refreshed when a change-set >> is applied. >> >> > Would you please point me to the doc where it says "and each stateful > session ... is refreshed"? > > If true, this were an extremely risky operation. Consider a stateful > session whizzing along and - smack! - rules change right in the middle of a > sequence of firings. Shudder. > > -W > > > > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > >
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