/** initializes engine components */
private synchronized void initEngine() {
this.disconnectables = new LinkedList<Disconnectable>();
// this.caughtExceptions = new LinkedBlockingQueue<Throwable>();
this.reteNet = new Network(reteThreads, context);
this.boundary = new ReteBoundary<PatternDescription>(this); // prerequisite: network
this.matchers = new HashMap<PatternDescription, RetePatternMatcher>();
/* this.matchersScoped = new HashMap<PatternDescription, Map<Map<Integer,Scope>,RetePatternMatcher>>(); */
// prerequisite: network, framework, boundary, disconnectables
this.manipulationListener = context.subscribePatternMatcherForUpdates(this);
// prerequisite: boundary, disconnectables
this.traceListener = context.subscribePatternMatcherForTraceInfluences(this);
}
