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 }