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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.scxml.model;
18  
19  import java.io.Serializable;
20  import java.util.ArrayList;
21  import java.util.List;
22  
23  /***
24   * An abstract base class for containers of executable elements in SCXML,
25   * such as <onentry> and <onexit>.
26   *
27   */
28  public abstract class Executable implements Serializable {
29  
30      /***
31       * The set of executable elements (those that inheriting from
32       * Action) that are contained in this Executable.
33       */
34      private List actions;
35  
36      /***
37       * The parent container, for traceability.
38       */
39      private TransitionTarget parent;
40  
41      /***
42       * Constructor.
43       */
44      public Executable() {
45          super();
46          this.actions = new ArrayList();
47      }
48  
49      /***
50       * Get the executable actions contained in this Executable.
51       *
52       * @return Returns the actions.
53       */
54      public final List getActions() {
55          return actions;
56      }
57  
58      /***
59       * Add an Action to the list of executable actions contained in
60       * this Executable.
61       *
62       * @param action The action to add.
63       */
64      public final void addAction(final Action action) {
65          if (action != null) {
66              this.actions.add(action);
67          }
68      }
69  
70      /***
71       * Get the TransitionTarget parent.
72       *
73       * @return Returns the parent.
74       */
75      public final TransitionTarget getParent() {
76          return parent;
77      }
78  
79      /***
80       * Set the TransitionTarget parent.
81       *
82       * @param parent The parent to set.
83       */
84      public final void setParent(final TransitionTarget parent) {
85          this.parent = parent;
86      }
87  
88  }
89