public Void execute(Context context) {
StatefulKnowledgeSession ksession = ((KnowledgeCommandContext) context).getStatefulKnowledgesession();
if ( workingMemoryEventlistener != null ) {
ksession.addEventListener( workingMemoryEventlistener );
} else if ( agendaEventlistener != null ) {
ksession.addEventListener( agendaEventlistener );
} else {
ksession.addEventListener( processEventListener );
}