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1   //----------------------------------------------------------------------
2   // 
3   // PerfectJPattern: "Design patterns are good but components are better!" 
4   // Example.java Copyright (c) 2009 Giovanni Azua Garcia
5   // bravegag@hotmail.com
6   //  
7   // This program is free software; you can redistribute it and/or
8   // modify it under the terms of the GNU General Public License
9   // as published by the Free Software Foundation; either version 3
10  // of the License, or (at your option) any later version.
11  //
12  // This program is distributed in the hope that it will be useful,
13  // but WITHOUT ANY WARRANTY; without even the implied warranty of
14  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  // GNU General Public License for more details.
16  //
17  // You should have received a copy of the GNU General Public License
18  // along with this program; if not, see <http://www.gnu.org/licenses/>.
19  //
20  //----------------------------------------------------------------------
21  package org.perfectjpattern.core.behavioral.visitor;
22  
23  import java.util.*;
24  
25  import org.perfectjpattern.core.api.behavioral.visitor.*;
26  
27  /**
28   * Startup Main for the Visitor Pattern Example code
29   *
30   * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a>
31   * @version $Revision: 1.0 $Date: Apr 5, 2008 10:11:17 PM $
32   */
33  // CHECKSTYLE:OFF
34  public final
35  class Example
36  // CHECKSTYLE:ON
37  {
38      //------------------------------------------------------------------------
39      // public
40      //------------------------------------------------------------------------
41      public static void 
42      main(String[] anArguments)
43      {
44          //---------------------------------------------------------------
45          // Create Element object
46          //---------------------------------------------------------------
47          Car myCar = new Car();
48   
49          //---------------------------------------------------------------
50          // Create collection of Visitors
51          //---------------------------------------------------------------
52          List<IVisitor<ICarPart>> myVisitors = new ArrayList<IVisitor<
53              ICarPart>>();
54          myVisitors.add(new PrintVisitor());
55          myVisitors.add(new DoVisitor());
56   
57          //---------------------------------------------------------------
58          // Do the visiting, transparently achieves double-dispatch
59          //---------------------------------------------------------------
60          for (IVisitor<ICarPart> myVisitor : myVisitors)
61          {
62              myVisitor.visit(myCar);
63          }
64      }
65  }