2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0.
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
19 package gov.nasa.jpf.util.event;
21 import java.util.HashMap;
24 * a forest of named event trees
26 * This class mostly exists for the purpose of tree construction, which happens from respective ctors like
28 * EventForest myForest = new EventForest(){
30 * protected Event createRoot(){
31 * addRoot("someState",
37 * addRoot("someOtherState",
40 * return sequence( ... ); // default tree
44 public abstract class EventForest extends EventTree {
46 protected HashMap<String,Event> rootMap;
51 * usually called from createRootEvent()
53 public void addRoot (String name, Event nextRoot){
55 rootMap = new HashMap<>();
57 rootMap.put(name, nextRoot);
63 public Event getRoot (String name) {
64 if (rootMap != null) {
65 return rootMap.get(name);