@@ -0,0 +1,1330 @@
+/*%0A * JaamSim Discrete Event Simulation%0A * Copyright (C) 2020 JaamSim Software Inc.%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Apackage com.jaamsim.basicsim;%0A%0Aimport java.util.ArrayList;%0A%0Apublic class SubjectEntityDelegate implements SubjectEntity %7B%0A%0A%09private final SubjectEntity subject;%0A%09private final ArrayList%3CObserverEntity%3E observerList = new ArrayList%3C%3E();%0A%0A%09public SubjectEntityDelegate(SubjectEntity subj) %7B%0A%09%09subject = subj;%0A%09%7D%0A%0A%09public void clear() %7B%0A%09%09observerList.clear();%0A%09%7D%0A%0A%09@Override%0A%09public void registerObserver(ObserverEntity obs) %7B%0A%09%09observerList.add(obs);%0A%09%7D%0A%0A%09@Override%0A%09public void notifyObservers() %7B%0A%09%09for (ObserverEntity obs : observerList) %7B%0A%09%09%09obs.observerUpdate(subject);%0A%09%09%7D%0A%09%7D%0A%0A%09@Override%0A%09public String toString() %7B%0A%09%09return String.format(%22%25s: %25s%22, subject, observerList);%0A%09%7D%0A%0A%7D%0A

add 'SubjectEntityDelegate' class