BooleanVariable


1   /*
2    * Copyright  1999-2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   *
16   */
17  
18  /* $Id: BooleanVariable.java 42598 2004-03-01 16:18:28Z gregor $  */
19  
20  package org.apache.lenya.workflow;
21  
22  
23  /**
24   * <p>Boolean state variable.</p>
25   * <p>
26   * A workflow schema can contain a set of state variables.
27   * For each instance, the state variables hold certain values.
28   * Values can be assigned during transitions, so a variable can
29   * change its value when a transition fires. Currently,
30   * the workflow supports only boolean state variables.
31   * </p>
32   */
33  public interface BooleanVariable {
34      
35      /**
36       * Returns the name of this variable.
37       * @return the name
38       */
39      String   getName();
40  
41      /**
42       * Returns the initial value of this variable.
43       * @return A boolean value.
44       */
45      boolean getInitialValue();
46  }
47

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