1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.scxml2.model;
18
19 /**
20 * The class in this SCXML object model that corresponds to the
21 * <parallel> SCXML element, which is a wrapper element to
22 * encapsulate parallel state machines. For the <parallel> element
23 * to be useful, each of its <state> substates must itself be
24 * complex, that is, one with either <state> or <parallel>
25 * children.
26 *
27 */
28 public class Parallel extends TransitionalState {
29
30 /**
31 * Serial version UID.
32 */
33 private static final long serialVersionUID = 2L;
34
35 /**
36 * Constructor.
37 */
38 public Parallel() {
39 }
40
41 /**
42 * {@inheritDoc}
43 * @return Returns always false (a state of type Parallel is never atomic)
44 */
45 public final boolean isAtomicState() {
46 return false;
47 }
48 /**
49 * Add a TransitionalState (State or Parallel) child
50 * @param ts the child to add
51 */
52 public final void addChild(final TransitionalState ts) {
53 super.addChild(ts);
54 }
55 }
56