<drools:ksession kbase="kBase" type="stateful" id="kSessionParent">
<drools:batch>
<drools:set-global identifier="helper" ref="sessionHelper"/>
</drools:batch>
</drools:ksession>
<bean id="kSession" scope="prototype" parent="kSessionParent"/>
<bean id="knowledgeSessionGateway" class="com.acme.rules.CompositeKnowledgeSessionGateway">
<lookup-method name="createSession" bean="kSession"/>
</bean>
Read [1,2] for background on Spring method injection and how to use it to get a factory method for Spring-configured prototype beans without your code (here: CompositeKnowledgeSessionGateway) needing to be Spring-aware. Note that conceptually, kSessionParent is an abstract bean, but the "abstract" attribute does not seem to be supported on <drools:ksession>. Class CompositeKnowledgeSessionGateway has a
protected StatefulKnowledgeSession createSession() {
return null;
}
method (that could be abstract) that gets overridden in a Spring-generated subclass.
Ref.:
-Richard