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    1   /*
    2    *
    3    *   Copyright 2005 The Apache Software Foundation.
    4    *
    5    *  Licensed under the Apache License, Version 2.0 (the "License");
    6    *  you may not use this file except in compliance with the License.
    7    *  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   */
    18  package org.apache.commons.scxml.model;
    19
    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 &lt;onentry&gt; and &lt;onexit&gt;.
    26   *
    27   */
    28  public abstract class Executable {
    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